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A178050
n=x^2+17, n and n+2 are prime.
0
17, 26261, 90017, 138401, 176417, 562517, 788561, 2022101, 2683061, 4743701, 5336117, 9622421, 11614481, 13927841, 21344417, 21734261, 22184117, 38192417, 59629301, 64448801, 68558417, 79923617, 82301201, 89302517, 90098081, 91814741, 95648417
OFFSET
1,1
EXAMPLE
17=0^2+17, and 19 are prime.
26261=162^2+17 and 26263 are prime.
PROG
(PARI) isok(n) = isprime(n) && isprime(n+2) && issquare(n-17); \\ Michel Marcus, Aug 18 2013
CROSSREFS
Subsequence of A228244.
Sequence in context: A355465 A134360 A171687 * A110915 A068733 A066161
KEYWORD
nonn
AUTHOR
John L. Drost, Dec 16 2010
EXTENSIONS
a(26)-a(27) from Michel Marcus, Aug 18 2013
STATUS
approved