35280

Appears in sequences

• a(n) = n*n! = (n+1)! - n!.at n=7A001563
• Number of loopless tree-rooted planar maps with 3 vertices and n faces and no isthmuses.at n=13A006428
• a(n) is the concatenation of n and 8n.at n=34A009470
• sec(tanh(x)*arctan(x))=1+12/4!*x^4-480/6!*x^6+35280/8!*x^8...at n=4A012686
• a(n) = (2*n - 11)*n^2.at n=28A015245
• Triangle of coefficients in expansion of x^n in terms of Laguerre polynomials L_n(x).at n=34A021012
• Denominators of poly-Bernoulli numbers B_n^(k) with k=3.at n=7A027646
• a(n) = Product_{i=0..n} (3*i+1)! / (n+i)!.at n=3A036687
• Triangular array formed from successive differences of factorial numbers.at n=37A047920
• Triangle of numbers a(n,k) = number of terms in n X n determinant with 2 adjacent diagonals of k and k-1 0's (0<=k<=n).at n=37A047922
• Triangle read by rows, the Bell transform of n!*binomial(2,n) (without column 0).at n=51A049404
• Triangle read by rows: T(n,k) = n!*k.at n=27A051683
• Differences of two factorial numbers.at n=22A051949
• E.g.f. x^2*(1+x-x^2)/(1-x)^2.at n=7A052633
• a(2) = 6, otherwise a(n) = n*n!.at n=7A052655
• Expansion of e.g.f. (1 - x - sqrt(1-2*x+x^2-4*x^3))/(2*x).at n=7A052723
• A simple context-free grammar in a labeled universe: labeled version of A052703.at n=6A052730
• Table related to labeled rooted trees, cycles and binary trees.at n=29A054589
• Triangle of increasing mobiles (circular rooted trees) with n nodes and k leaves.at n=42A055356
• Number of increasing mobiles (circular rooted trees) with n nodes and 7 leaves.at n=1A055361