52640
domain: N
Appears in sequences
- Expansion of (1 + x)/(1 - 2*x - x^2 + x^3).at n=13A033303
- Number of ways to place a non-attacking white and black queen on n X n chessboard.at n=15A035291
- Number of partitions of n into parts not of the form 23k, 23k+8 or 23k-8. Also number of partitions with at most 7 parts of size 1 and differences between parts at distance 10 are greater than 1.at n=43A035996
- T(n,n+1), array T as in A047089.at n=9A047095
- A(x) satisfies A005408(x) = A(x)/A(x^2), A005408 = odd numbers.at n=27A173283
- Maximal term of TRIP-Stern sequence of level n corresponding to permutation triple (e,13,e).at n=26A271485
- Number of permutations of [n] avoiding {1243, 2431, 3412}.at n=11A294695
- Triangle read by rows. The incomplete Bell transform of the central binomial numbers.at n=40A352369
- G.f. satisfies A(x) = (1 + x*A(x)^2) * (1 + x*A(x)^6).at n=5A364333