18568
domain: N
Appears in sequences
- Sum of degrees of irreducible representations of alternating group A_n.at n=10A007002
- Number of partitions of n that do not contain 3 as a part.at n=41A027337
- Number of ways to place a non-attacking white and black bishop on n X n chessboard.at n=11A035288
- Number of partitions in parts not of the form 25k, 25k+1 or 25k-1. Also number of partitions with no part of size 1 and differences between parts at distance 11 are greater than 1.at n=46A036000
- Numbers whose base-4 representation contains exactly four 0's and three 2's.at n=29A045060
- a(0)=0, a(1)=1, a(n)=4a(n-1)+2 for n =3,5,7,..., a(n)=4a(n-1) for n =2,4,6,....at n=8A117615
- A vector recursion sequence: k = 1; m = 2; l = 1; a(n)=k*{0,a(n-2),0}+m*{-(m-1)/m,a(n-1)}++m*{a(n-1),-(m-1)/m}+l*{0,0,a(n-4),0,0}.at n=57A152654
- Number of binary strings of length n with equal numbers of 00011 and 11100 substrings.at n=15A164234
- Number of right triangles on a (n+1)X8 grid.at n=12A189812
- Number of partitions of n such that the number of even parts is a part and the number of odd parts is a part.at n=48A240575
- Number of length n+5 0..7 arrays with some three disjoint pairs in each consecutive six terms having the same sum.at n=0A248488
- T(n,k)=Number of length n+5 0..k arrays with some three disjoint pairs in each consecutive six terms having the same sum.at n=21A248489
- Number of length 1+5 0..n arrays with some three disjoint pairs in each consecutive six terms having the same sum.at n=6A248490
- Number of (n+2)X(2+2) 0..3 arrays with every 3X3 subblock row and column sum 1 3 6 or 8 and every diagonal and antidiagonal sum not 1 3 6 or 8.at n=8A252009
- Ways to tile a 5 X (2n+1) floor with tatami mats, including one monomer.at n=25A281791
- Numbers k such that (85*10^k + 293)/9 is prime.at n=19A294680