359649

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=24A178879
• a(n) is equal to the rational part (considering of the field Q(sqrt(13))) of the numbers A(n)/sqrt(13), where we have A(n) = ((sqrt(13) - 1)/2)*A(n-1) + A(n-2) + ((3-sqrt(13))/2)*A(n-3), with A(0) = 6, A(1) = sqrt(13) - 1, and A(2) = 11 - sqrt(13).at n=21A216486