6219851

Appears in sequences

• a(n) = 3^n reduced modulo 2^n.at n=23A002380
• Number of (n+1)X(2+1) 0..2 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction.at n=7A250988