Before living the United States today, President Julius Nyerere of Tanzania intiated discussions with American officials aimed at reactivating the Peace Corps program in his country.

At his request, Nyerere met here for half an hour with Sam Brown, the director of ACTION, the umbrella group for the Peace Corps and domestic volunteer programs, and invited Brown to Dar es Salaam for further discussions. The Peace Corps program was suspended in 1969 by the Tanzanian government as diplomatic relations with the United States deteriorated, especially over the Vietnam war, while at the same time the east African country was developing a strong policy of self-reliance.

"We didn't make any final decisions," said Brown, who attended the meeting at the Hyatt Regency Hotel with John Lewis, the associate director for domestic operations of ACTION. "We couldn't decide at this point but I guess I will be going to Tanzania fairly quickly," Brown said.

After a morning press conference, his third since arriving in the United States last Wednesday night, Nyerere flew to Jamaica. He is scheduled to spend a few days there with Prime Minister Michael Manley discussing the economic development of poor countries.

Nyerere is scheduled to fly from there to London on a day as yet undecided for a briefing with U.S. Secretary of State Cyrus R. Vance and British Foreign Secretary David Owen on the latest British-American proposals for a peaceful transition to majority rule in Rhodesia.

"As a result of my talks with President Jimmy Carter, I feel hopeful that your country is going to support the liberation movement in southern Africa and add diplomatic pressure to stop racialism in South Africa," Nyerere said yesterday.

"President Carter thought it would be good for me to meet with Vance. So I will be listening to what he has to say," said Nyerere, who has played a privotal role in the diplomatic maneuvers in southern Africa as the leader of the "front line" countries that support the black nationalist struggle for majority rule in Rhodesia, Namibia and South Africa.

A visit to the grave of the Rev. Martin Luther King Jr., the slain civil rights activist, was added to Nyerere's schedule at the last minute. Coretta Scott King, the widow of the black leader who was born in Atlanta and used the city as his headquarters, made the request personally.

Nyerere, his official party and several State Department officials joined tourists at the grave. Afterwards, Mrs. King said, "I did feel it was important that Julius Nyerere, who is a real liberation fighter, and Martin Luther King, who espoused nonviolent means to freedom, blend their spirits together."