19294
domain: N
Appears in sequences
- Numbers k such that 6!*(2*k-7)!/(k!*(k-1)!) is an integer.at n=22A004786
- Numbers k such that 7!*(2k-8)!/(k!*(k-1)!) is an integer.at n=25A004787
- Number of factorization patterns of polynomials of degree n over F_2.at n=27A006167
- Number of 4k+1 primes (A002144) in range ]2^n,2^(n+1)].at n=18A095007
- G.f.: Product_{j>=1} Product_{i>=1} (1 + x^(i*j)).at n=27A107742
- Number of 4-step E, S, NW and NE-moving king's tours on an n X n board summed over all starting positions.at n=19A187587