29625
domain: N
Appears in sequences
- Numbers k such that if you multiply the primes that are indexed by the digits of k and add the sum of digits of k you get k.at n=1A123911
- a(n) = 56*n^2 + 1.at n=23A158660
- a(n) = (7*n^4 + 5*n^2)/12.at n=14A185505
- Rectangular array A read by upward antidiagonals: A(n,m) is the number of surjective difunctional (regular) binary relations between an n-element set and an m-element set.at n=48A265707
- Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 41", based on the 5-celled von Neumann neighborhood.at n=28A285546
- a(n) is the number of perfect matchings in the graph with vertices labeled 1 to 2n with edges {i,j} for 1<=|i-j|<=4.at n=10A320346