A163633 4n^2-2n+p: p=5,n=0,1,2 connects to next p=17,n=0,1,2 connects to next p=29,n=0,1,2 connects to next 4n^2-2n+41 where n=0,1,-1,2,-2,3,-3,... This is part of Prime Helix and for 41 an extension of Euler's x^2-x+41 but this sequence has 46 primes. The first are twin primes with 12 separation.

5, 7, 17, 19, 29, 31, 41, 43, 47, 53, 61, 61, 71, 83, 97, 113, 131, 151, 173, 197, 223, 251, 281, 313, 347, 383, 421, 461, 503, 547, 593, 641, 691, 743, 797, 853, 911, 971, 1033, 1097, 1163, 1231, 1301, 1373, 1447, 1523, 1601

Offset

1,1

Links

Table of n, a(n) for n=1..47.

Crossrefs

Sequence in context: A100021 A099389 A099382 * A092242 A003630 A122565

Adjacent sequences: A163630 A163631 A163632 * A163634 A163635 A163636

Keyword

nonn,uned

Author

Milton L. Brown (miltbrown(AT)earthlink.net), Aug 02 2009

Status

approved