72366
domain: N
Appears in sequences
- Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite WEI = Weinebeneite Ca4[Be12P8O32(OH)8].16H2O starting from a T2 atom.at n=15A019263
- q-factorial numbers 3!_q.at n=41A069778
- The number of permutations of length n sortable by 3 prefix reversals (in the pancake sorting sense).at n=42A228398
- a(n) = m is the least m = b*c > a(n-1) such that (b+c)*n = m-1 where 1 < b <= c < m.at n=40A364171