24616

Appears in sequences

• Expansion of 1/((1+x)*(1-x)^5).at n=30A001752
• a(n) = n*(n + 1)*(2*n^2 + 2*n - 1)/6.at n=15A006324
• Sum of tetrahedral numbers A000292(k), with k in the reduced residue system modulo n.at n=31A189918
• Number A(n,k) of unimodal functions f:[n]->[k*n]; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=40A226031
• Number of unimodal functions f:[n]->[n^2].at n=4A227402
• Number of unimodal functions f:[n]->[2^n].at n=4A227406
• Main diagonal of square arrays A114881 and A249741.at n=26A249743
• Numbers m > 0 that have a divisor d > 1 with binomial(m+d, d) == 1 mod m.at n=42A290040
• Harary index of the n X n queen graph.at n=16A296196
• Self-convolution of the Dedekind psi function (A001615).at n=39A307502
• Even composite integers m such that U(m)^2 == 1 (mod m) and V(m) == 7 (mod m), where U(m)=A004187(m) and V(m)=A056854(m) are the m-th generalized Lucas and Pell-Lucas numbers of parameters a=7 and b=1, respectively.at n=39A337782
• a(n) = 3*2^n + 3*n + 1.at n=13A389178