57456

Appears in sequences

• a(n) = (2*n-1)*(3*n-1)*(4*n-1)*(5*n-1).at n=5A033590
• a(n) = n-th quintic factorial number divided by 4.at n=4A034301
• A triangle of numbers related to triangle A049325.at n=41A049410
• a(n) = (n+1)*a(n-5), with a(0)=a(1)=a(2)=a(3)=a(4)=1.at n=23A081408
• Triangle read by rows: T(n,k) is the number of permutations p of [n] such that the length of the longest 2-stack sortable initial segment of p is equal to k.at n=39A094785
• Integers i such that 41*i = 105 X i.at n=29A115876
• Partition number array, called M32(-4), related to A011801(n,m)= |S2(-4;n,m)| ( generalized Stirling triangle).at n=19A144267
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 1, -1), (1, 0, -1), (1, 0, 1), (1, 1, 1)}.at n=8A150909
• A partition product with biggest-part statistic of Stirling_1 type (with parameter k = -2) as well as of Stirling_2 type (with parameter k = -2), (triangle read by rows).at n=30A157400
• A partition product of Stirling_2 type [parameter k = 4] with biggest-part statistic (triangle read by rows).at n=19A157404
• Numbers with prime factorization pqr^3s^4.at n=15A190294
• Number of (n+1) X (1+1) 0..2 arrays with every 2 X 2 subblock having the sum of the squares of the edge differences equal to 2.at n=6A233637
• Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 2.at n=0A233643
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 2 (2 maximizes T(1,1)).at n=21A233644
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 2 (2 maximizes T(1,1)).at n=27A233644
• Smallest k such that A261029(k) = n.at n=35A260935
• Number of non-derogatory n X n matrices with elements {-1, 1}.at n=3A306816
• Table read by ascending antidiagonals: T(n, k) is the maximum number of quasi k-gons that are not k-gons in a finite projective plane of order n, with k >= 3.at n=15A342307
• Conjectural order of the torsion subgroup of the group K_n(Z) (the algebraic K-theory groups of the integers).at n=35A345267
• Positive integers that can be expressed in at least two ways as (x-y)*(x^3-y^3).at n=0A352244