591394

Appears in sequences

• Rectified hexateron (5-simplex) numbers: the coefficient of x^(2n-2) in (1+x+x^2+...+x^(n-1))^6.at n=19A179096
• 1/16 the number of (n+1) X 4 0..3 arrays with all 2 X 2 subblocks having the same four values.at n=16A184033
• a(n) = (n^4-3*n^2+4*n+2)/2.at n=33A387525