87663
domain: N
Appears in sequences
- Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,2 4,3 5,4 6,5 7,5 polyhexes in any orientation on a planar nXnXn triangular grid.at n=8A155430
- Largest members of k-sociable cycles of order r.at n=20A183013
- Magic sums of 3 X 3 magic squares composed of primes in an arithmetic progression.at n=15A269324
- Numbers k such that 347*2^k+1 is prime.at n=29A322971