9823275

Appears in sequences

• Number of permutations in the symmetric group S_n that have odd order.at n=11A000246
• Number of level permutations of degree n.at n=11A053195
• a(n) = (2n-1)!! * (2n+1)!!, where the double factorial is A006882.at n=5A079484
• Coefficients of Pi^(2*n+1) in a certain integer relation involving Ramanujan exponential-type sums.at n=5A119542
• Denominator of Laguerre(n, -4).at n=16A160612
• Triangular array read by rows. Row n lists the coefficients of the closed form of hypergeometric([1/2, -n/2, (1-n)/2], [], 4*z).at n=36A246256
• Number of permutations on [n] admitting an eighth root.at n=11A247006
• Number of permutations p of [n] such that the up-down signature of p has nonnegative partial sums with a maximal value <= 10.at n=11A262135
• Triangular array of the number of binary, rooted, leaf-labeled tree topologies with n leaves and k cherries, n >= 2, 1 <= k <= floor(n/2).at n=29A306364
• Smallest number having exactly n divisors of the form 8*k + 1.at n=34A343104
• Smallest number having exactly n divisors of the form 8*k + 3.at n=35A343105
• Table of the number of ways T(m,n) to partition a 2m X 2n grid into Cartesian products of size 2 X 2, read by ascending antidiagonals.at n=16A373692
• Table of the number of ways T(m,n) to partition a 2m X 2n grid into Cartesian products of size 2 X 2, read by ascending antidiagonals.at n=19A373692