30617
domain: N
Appears in sequences
- Number of 2's in n-th term of A022470.at n=40A022473
- Number of n-digit base-3 deletable primes.at n=17A096236
- a(n) = 42*n^2 - 1.at n=26A158626
- Numbers k such that 1 + 8*10^k + 100^k is prime.at n=11A171514
- Snub dodecahedron with faces of centered polygons.at n=8A193249
- Numbers with sum of digits equaling 17, divisible by 17, and containing the string "17".at n=6A346904
- Moran numbers whose arithmetic derivative is also a Moran number (A001101).at n=21A349485