66696
domain: N
Appears in sequences
- Numbers k whose decimal representation, read as a base-18 value and divided by k, yields an integer.at n=36A032567
- 6-almost primes with semiprime digits (digits 4, 6, 9 only).at n=17A111730
- Numbers with digits 6 and 9 only.at n=32A284636
- Number of compositions (ordered partitions) of n into at most 6 squarefree parts.at n=36A347783
- Expansion of g.f. A(x) satisfying A(x)^3 = 1 + x*(A(x) + A(x)^2 + A(x)^9).at n=7A363560