51505

Appears in sequences

• Number of unlabeled unit interval graphs with n nodes.at n=11A005217
• Numbers having four 7's in base 9.at n=19A043484
• Erroneous version of A005217.at n=10A092458
• Number of n X 4 0..1 arrays with rows, columns and antidiagonals unimodal and diagonals nondecreasing.at n=11A223766
• E.g.f.: exp(5*x*G(x)^4) / G(x)^4 where G(x) = 1 + x*G(x)^5 is the g.f. of A002294.at n=5A251575
• Table of coefficients in functions R(n,x) defined by R(n,x) = exp( n*x*G(n,x)^(n-1) ) / G(n,x)^(n-1) where G(n,x) = 1 + x*G(n,x)^n, for rows n>=1.at n=50A251660
• a(n) = Sum_{k=1..n} floor(n^3/k^3).at n=34A344675