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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.
0
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
CROSSREFS
Sequence in context: A100021 A099389 A099382 * A092242 A003630 A122565
KEYWORD
nonn,uned
AUTHOR
Milton L. Brown (miltbrown(AT)earthlink.net), Aug 02 2009
STATUS
approved