A172289 Partial sums of regular primes A007703.

3, 8, 15, 26, 39, 56, 75, 98, 127, 158, 199, 242, 289, 342, 403, 474, 547, 626, 709, 798, 895, 1002, 1111, 1224, 1351, 1488, 1627, 1778, 1941, 2108, 2281, 2460, 2641, 2832, 3025, 3222, 3421, 3632, 3855, 4082, 4311, 4550, 4791, 5042, 5311, 5588, 5869, 6182

Offset

1,1

Comments

First 10 terms identical to partial sum of odd primes A071148 because the first irregular prime A000928 is 37. The subsequence of regular primes begins: 3, 127, 199, 709, 1627, 2281. The subsequence of irregular primes begins: 127, 547.

Links

Table of n, a(n) for n=1..48.

Example

a(20) = 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 + 31 + 41 + 43 + 47 + 53 + 61 + 71 + 73 + 79 + 83 + 89 = 798.

Crossrefs

Cf. A000040, A000367, A000928, A007703.

Sequence in context: A001208 A159465 A071148 * A172296 A048598 A049717

Adjacent sequences: A172286 A172287 A172288 * A172290 A172291 A172292

Keyword

easy,nonn

Author

Jonathan Vos Post, Jan 30 2010

Extensions

More terms from R. J. Mathar, Feb 11 2010

Status

approved