36288000

Appears in sequences

• a(n) = n*n! = (n+1)! - n!.at n=10A001563
• Triangle of numbers n!(n-1)!...(n-k+1)!/(1!2!...k!).at n=31A009963
• Triangle of numbers n!(n-1)!...(n-k+1)!/(1!2!...k!).at n=32A009963
• a(n) = n! * (n+1)! * (n+2)! / (2! * 3!).at n=4A010797
• a(n) = n! * (n+1)! * (n+2)! * (n+3)! / (2! * 3! * 4!).at n=3A010798
• E.g.f. x^2*(1+x-x^2)/(1-x)^2.at n=10A052633
• a(2) = 6, otherwise a(n) = n*n!.at n=10A052655
• Expansion of e.g.f. (1-x^4)/(1-x-x^4).at n=10A052692
• a(n) = 2*n*(2*n)!.at n=5A062779
• Number of integers in {1, 2, ..., n!} that are coprime to n.at n=10A074930
• Number of degree-n permutations with (mutually) relatively prime cycle lengths.at n=10A079128
• Array of coefficients of denominator polynomials of the n-th approximation of the continued fraction x/(1+x/(2+x/(3+..., related to Laguerre polynomial coefficients.at n=37A084950
• Number of sets of lists with distinct list sizes, cf. A000262.at n=10A088311
• Generalized Stirling2 array (4,3).at n=22A090440
• a(1) = 1, a(n+1) = n*n! for n >= 1.at n=10A094258
• Sum of all possible sums formed from all but one of the previous terms, starting 1.at n=11A094304
• a(n) = Product_{k=0..n-1} (n+k)!/(k+1)!.at n=4A107252
• Denominators of Blandin-Diaz compositional Bernoulli numbers (B^S)_1,n.at n=8A133003
• Number of descents beginning and ending with an even number in all permutations of {1,2,...,n}.at n=10A152886
• a(n) is the period k such that binomial(m, n) (mod 10) = binomial(m + k, n) (mod 10).at n=10A174183