2075673600

Appears in sequences

• Coefficient of H_2 when expressing x^{2n} in terms of Hermite polynomials H_m.at n=7A001814
• a(n) = n! / 3.at n=10A002301
• Triangle read by rows. A generalization of unsigned Lah numbers, called L[4,1].at n=37A048854
• Expansion of e.g.f. x*(1-2*x)*(1 - 2*x - sqrt(1-4*x))/2 - x^3.at n=10A052721
• Fourth (unsigned) column sequence of triangle A062140 (generalized a=4 Laguerre).at n=7A062261
• Let m be the product of the decimal digits in n, then a(n) = 0 if m = 0, otherwise a(n) = n!/m.at n=12A067455
• a(n) = A081456(n)^(1/2).at n=19A081457
• Product of related numbers (counted in A073757) belonging to n; related = {divisor-set, RRS}: a(n) = A007955(n)*A001783(n).at n=15A083267
• n! divided by prime whose index is the integer part of log(n).at n=10A089057
• Denominators of terms in series expansion of arctan(arcsin(x)).at n=6A096720
• Denominator of the coefficients of (x-1)(x-2)... in the interpolating polynomial through the first n primes.at n=13A118211
• Product of numbers up to n-1 used as divisors in A008336(n), n >= 2; a(1) = 1.at n=26A195504
• Product of numbers up to n-1 used as divisors in A008336(n), n >= 2; a(1) = 1.at n=27A195504
• E.g.f.: exp(x^3/(1 + x + x^2 + x^3)).at n=13A293590
• a(n) is the least integer for which there exist two disjoint sets of n positive integers each, all distinct, for which the product of the integers in either set is a(n).at n=8A354457