235146240

Appears in sequences

• a(n) is the n-th sextic factorial number divided by 6.at n=6A034788
• a(n) = (n+1)^5*(5+n)!/120.at n=5A154308
• Denominators of coefficients in Taylor series expansion of exp(cosec(x)-cotanh(x)).at n=6A202382
• a(n) = 6^(n-1) * n! * Catalan(n-1).at n=5A221955
• Number of n X 3 0..2 arrays with some element plus some horizontally or antidiagonally adjacent neighbor totalling two exactly once.at n=8A268899
• Partial products of A280246 (Product_{d|n} psi(d)).at n=8A280248