62440
domain: N
Appears in sequences
- q-factorial numbers 3!_q.at n=39A069778
- Numbers n such that (2^n-1)^3+2 is prime.at n=12A100899
- A triangle of structure called "Polynomial on residue classes" (PORC).at n=26A158106
- a(n) = binomial(n^2,3)/(2*n).at n=14A201106
- The number of permutations of length n sortable by 3 prefix reversals (in the pancake sorting sense).at n=40A228398
- Nonunitary weird numbers: numbers that are nonunitary abundant but not nonunitary pseudoperfect.at n=21A327948
- 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=38A364171