45425564002
domain: N
Appears in sequences
- Constant term of the reduction of the polynomial p(n,x)=(1/2)((x+2)^n+(x-2)^n) by x^2->x+2.at n=19A192355
- Number of (n+1) X (1+1) 0..3 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction.at n=14A250870
- Number of achiral color patterns (set partitions) for a row or loop of length n using exactly 4 colors (sets).at n=37A304974