202540
domain: N
Appears in sequences
- a(n) = number of 8-digit primes with digit sum n, where n runs through the non-multiples of 3 in the range [2..71].at n=29A178879
- Number of non-equivalent ways to tile an n X n X n triangular area with two 2 X 2 X 2 triangular tiles and an appropriate number (= n^2-8) of 1 X 1 X 1 tiles.at n=38A286444