Just for fun, I counted up this end-of-the-week crush - between Thursday and Sunday, 13 groups will be presenting 30 ensorted dance performances and events. This pattern is no longer the exception; it's become more like the rule in Washington. This weekend the amount includes the continuing performances by American Ballet Theater (six, including the matinees Saturday and Sunday) at Kennedy Center. Otherwise, the lineup is:

The African Herliage Dancers and Drummers present four African Folktales for children, at 1 and 8 p.m. today and 1 p.m. Saturday, at the African Art Museum, 316 a Street NE. The event is free; seating is first-come first-served.

The Indian embassy is presenting Yamini Krishnamurti in a program of Bharate Natyman dances at the Commerce Department Auditorium at 3 p.m. this evening. The event is by invitation only, but it's worth noting that this respected Indian artist is making her first American tour. Also this evening, the St. Mark's Dance Company, directed by Mary Craighill, will perform at 3 p.m. in Georgetown Uiversity's Linthicum Hall. The Dance Exchange continues its spring concert series with several programs at Epighany Church, 13th and G Sts. NW, at 3 o'clock tonight through Sunday, and 10 p.m. Friday. The Dance Forum presents "works-in-progress" by local choreographers at 12:30 and 3 p.m. Friday, at the Forum, 1326 1 St. NW. The Free Association improvisatory dance group performs at 8:30 p.m. Friday and Sunday at Grace Church, 1041 Wisconsin Ave, NW. The Dance Construction Company premieres "Put on the Music, Let's Dance" at 8 p.m. Friday and Sunday at WPA, 1227 G St. NW.

The Montgomery Ballet performs "Madeleine" and "The Adventures of Oz"2:30 p.m. Saturday and Sunday at Northwood High School 99 University Blvd. West and Arcola Avenue, Silver Spring. The Fairfax County Modern Dance Company, directed by Sally Moravits, presents a program of original ihoreography at McLean Community Center, 1236 Inglesidt Ave., HcLean, at 8 p.m. Saturday and 3 p.m. Sundy. Erika Thimmey's Washington Dance Theater premieres "The Lamentationsof Jeremiah," choreographed by Miss Thimey to music by Alberto Cinnotera at 11 a.m. Sunday in St. Johns Episcopal Church. 3040 O St. N.W. Noted dance critic and author Walter Terry will presented a slide-illustrated lecture on "100 Years of American Dance at the Marvin Theater, GWU, 4:30 p.m. Sunday; the event is sponsored by the Washington Ballet. The National Folk Ballet of Yugoslavia, on its first American tour, will perform at 8:30 p.m. Sunday in the Kennedy Center Concert Hall; the troupe is directed by Brankt Markovich.

Choreographs-dancer Merce Cunningham was awarded the 1977 Capezio Ward last night at the Plaza Hotel. Cunningham was cited for "his seiminal influence in a contemporary dance." The award, the oldest majo1952 and carries an honorarium of $1,000. David Paughan1952 and carries and honorarium of $1,000. David Paughan, dance writer and critic and long an associate of Cunningham, made the presentation.

Natalia Makarova will appear in the American premiere of Igor Tchernichov's "Romeo and Juliet" with the Maryland Ballet at Baltimore's Lyric Theatre next month. In two performances on April 17, Makarova will dance the title rate in the work, set to music by Berlioz. Other principals will be Ivan, Nagy, Helgi Tomasson and Sylvester Campbell. For further informationabout the benefit performances, call 301-366-5800.