39860

Appears in sequences

• Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite ATN = MAPO-39 Hn [ MgnAl8-n P8O32 ].at n=6A018983
• Numbers k such that abs(prime(k)-k*tau(k)) < sqrt(k).at n=29A068543
• Interprimes which are of the form s*prime, s=20.at n=34A075295
• Number of 5-step S, E, and NW-moving king's tours on an n X n board summed over all starting positions.at n=29A187510
• Least number m such that A247600(m) = n.at n=7A281197
• a(n) = one-half of the number of cells in the central rectangle of the graph described in row 2n+1 of A333288.at n=31A337640
• Number of 3-connected planar cubic graphs with 2*n nodes and exactly one edge-Kempe equivalence class.at n=9A358287
• Number of subsets of {1,2,...,n} such that no two elements differ by 1, 4, or 5.at n=30A375981