A090606 A089144 indexed by A000040.

1, 2, 4, 7, 8, 15, 16, 17, 19, 27, 30, 31, 37, 52, 57, 61, 65, 75, 76, 78, 87, 91, 106, 112, 113, 118, 143, 145, 155, 158, 165, 184, 188, 207, 220, 229, 237, 241, 265, 269, 278, 288, 295, 306, 307, 311, 312, 332, 346, 360, 368, 383, 388, 393, 404, 418, 439, 449

Offset

1,2

Comments

Prime(k)*6 - 3 -+ 2 are both prime. - Juri-Stepan Gerasimov, Mar 19 2010

Links

Table of n, a(n) for n=1..58.

Formula

a(n)=k such that A000040(k)=A089144(n).

Crossrefs

Cf. A089144, A090607, A090608, A090609, A090610.

Sequence in context: A018430 A018265 A056694 * A241548 A373801 A019539

Adjacent sequences: A090603 A090604 A090605 * A090607 A090608 A090609

Keyword

nonn

Author

Ray Chandler, Dec 06 2003

Extensions

Offset changed to 1 by Jinyuan Wang, Aug 03 2021

Status

approved