38196

Appears in sequences

• Expansion of (1-x)^(-1)/(1+x+x^2-x^3).at n=38A077908
• Inverse of coefficient array of orthogonal polynomials P(n,x)=x*P(n-1,x)-(2n-3)*P(n-2,x), P(0,x)=1,P(1,x)=x.at n=71A178104
• Row sums of A204087.at n=21A204088
• a(1) = 0, a(2) = 1, and for n > 2, a(n) = 2*a(A252463(n)) + [n == 1 (mod 6)].at n=52A292941
• a(n) = 27*n^2 - 21*n + 6 (n>=1).at n=37A304164