59670

Appears in sequences

• Number of symmetric types of (4,2n)-hypergraphs under action of complementing group C(4,2).at n=11A029941
• (Terms in A029613)/2.at n=37A051435
• (Terms in A029627)/2.at n=53A051457
• (Terms in A029643)/2.at n=52A051469
• a(n) = n*(n-1)*(n-3)*(n-5).at n=18A062765
• a(n) = 3*n^3 + n^2 - 4*n.at n=27A083127
• Numbers whose number of divisors equals the sum of their separate prime-power decompositions.at n=22A087004
• Number of permutations of length n with exactly 5 occurrences of the pattern 2-13.at n=8A120813
• a(n) = (n-1)*(n+2)*(2*n+11)/2.at n=36A130862
• A certain partition array in Abramowitz-Stegun order (A-St order), called M_3(5).at n=19A134273
• A partition product of Stirling_2 type [parameter k = -5] with biggest-part statistic (triangle read by rows).at n=19A157397
• Triangle T(n,k), 0 <= k <= n, read by rows defined by: T(n,k) = (binomial(2*n,2*k) + binomial(2*n+1,2*k))/2.at n=49A232535
• Triangle read by rows: T(n,k) (n>=0, 0<=k<=A002620(n-1)) is the number of permutations of [n] with k nestings.at n=48A263776
• Number of irredundant sets in the n X n bishop graph.at n=4A290714
• Numbers k such that the continued fraction of the harmonic mean of the divisors of k contains a single distinct element.at n=26A349476
• Primitive terms of A023197 that are of the form 4u+2.at n=39A388020