47148
domain: N
Appears in sequences
- Numbers k that divide the sum of the digits of k!!, the double factorial of k.at n=20A108858
- Number of reduced 3 X 3 magilatin squares with magic sum n.at n=33A174020
- Prime sieve of Champernowne constant A033307.at n=55A246022
- Coefficient of z^(3*n) in the expansion of (1 + 9*z + 9*z^2 + z^3)^(2*n).at n=2A300057