A090876 Sum of regular and irregular primes of the same index.

39, 62, 72, 108, 114, 144, 166, 176, 256, 286, 294, 312, 326, 340, 360, 372, 418, 426, 458, 472, 490, 506, 528, 542, 574, 590, 604, 630, 674, 704, 714, 730, 756, 768, 784, 800, 810, 816, 830, 854, 874, 882, 898, 914, 928, 952, 968, 1008, 1064, 1074, 1092

Offset

1,1

Links

Table of n, a(n) for n=1..51.

Example

The 10th regular prime is 29. The 10th irregular prime is 257. 29+257 = 286, the 10th entry in the table.

Crossrefs

Sequence in context: A039353 A043176 A043956 * A375744 A165461 A020166

Adjacent sequences: A090873 A090874 A090875 * A090877 A090878 A090879

Keyword

nonn

Author

Cino Hilliard, Feb 13 2004

Status

approved