33006
domain: N
Appears in sequences
- Numbers k such that 6!*(2*k-7)!/(k!*(k-1)!) is an integer.at n=37A004786
- Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite PAU = Paulingite (K2,Ca,Na2)76[Al152Si520O1344] starting with a T7 atom.at n=6A019055
- Determinant of power series with alternate signs of gamma matrix with determinant 3!.at n=4A158046
- Number of (n+3)X(n+3) 0..3 arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock.at n=2A186590
- Number of (n+3)X6 0..3 arrays with every 4X4 subblock commuting with each horizontal and vertical neighbor 4X4 subblock.at n=2A186593
- T(n,k) = Number of (n+3) X (k+3) 0..3 arrays with every 4 X 4 subblock commuting with each horizontal and vertical neighbor 4 X 4 subblock.at n=12A186599
- The number of even permutations p of 1,2,...,n such that -1<=p(i)-i<=2 for i=1,2,...,n.at n=18A268306
- Number of length-n binary vectors beginning with 0, ending with 1, and avoiding 4 consecutive 0's and 4 consecutive 1's.at n=19A283834
- (1/4) * number of ways to select 3 distinct points forming a triangle of unsigned area = n/2 from a square of grid points with side length n.at n=17A320310
- Number of partitions of n with at most four part sizes.at n=48A364793