380424

Appears in sequences

• Number of 4 X n 0-1 matrices which have n+3 1's and have no zero rows or zero columns.at n=5A084486
• G.f. satisfies: A(x) = (1 + x*A(2x))^3.at n=5A171201
• Self-convolution square-root of A005810, where A005810(n) = binomial(4*n,n).at n=7A208977
• Number of solutions to x^2 + y^2 + z^2 + t^2 == n (mod 2*n) for x,y,z,t in [0, 2*n).at n=32A229294