310800

Appears in sequences

• Triangle of coefficients of q in e.g.f. that satisfies: A(x,q) = exp( q*x*A(q*x,q) ), read by rows of [n*(n-1)/2 + 1] terms in row n for n>=0.at n=79A126265
• a(n) = (n in base 10) * (n in base 2).at n=28A127906
• Least common multiple of all p-1, where prime p divides the n-th primary pseudoperfect number A054377(n).at n=6A191975
• Principal diagonal of the convolution array A212891.at n=23A213436
• a(n) = n^2*(2*n^2-23).at n=19A370109