A328468 - OEIS

A328468

Row 5 of A328464: a(n) = A276156(32n - 16) / 210.

1, 12, 144, 155, 2432, 2443, 2575, 2586, 46190, 46201, 46333, 46344, 48621, 48632, 48764, 48775, 1062348, 1062359, 1062491, 1062502, 1064779, 1064790, 1064922, 1064933, 1108537, 1108548, 1108680, 1108691, 1110968, 1110979, 1111111, 1111122, 30808064, 30808075, 30808207, 30808218, 30810495, 30810506, 30810638, 30810649

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OFFSET

1,2

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..8192

Index entries for sequences related to primorial base

FORMULA

a(n) = (1/210) * A276156(32*n - 16).

PROG

(PARI)

A002110(n) = prod(i=1, n, prime(i));

A276156(n) = { my(p=2, pr=1, s=0); while(n, if(n%2, s += pr); n >>= 1; pr *= p; p = nextprime(1+p)); (s); };