97977600

Appears in sequences

• a(n) = (n^3 + n)*6^n.at n=6A128043
• G.f. satisfies: A(x) = exp( Sum_{n>=1} [Sum_{k=0..2*n} T(n,k)^2 * x^k] / A(x)^n * x^n/n ), where T(n,k) is the coefficient of x^k in (1+2*x)^n*(1+3*x)^n.at n=16A251688
• Total number of consecutive triples of the form (odd, even, odd) or (even, odd, even) in all permutations of [n].at n=11A329550
• Denominators of coefficients in a series for Euler's constant gamma.at n=8A332541