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A102657
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Numbers n such that 11n^2 + 11n + 1 is prime.
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0
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1, 2, 5, 6, 7, 9, 11, 13, 14, 20, 23, 25, 26, 27, 28, 32, 33, 36, 37, 40, 42, 48, 49, 50, 51, 58, 61, 62, 68, 74, 75, 76, 77, 78, 81, 84, 92, 96, 103, 104, 109, 111, 119, 120, 126, 127, 133, 135, 137, 141, 142, 144, 145, 149, 153, 156, 158, 163, 166, 168, 169, 172, 176
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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EXAMPLE
| If n=1, then 11*1^2 + 11*1 + 1 = 23 (prime)
If n=20, then 11*20^2 + 11*20 + 1 = 4621 (prime)
If n=40, then 11*40^2 + 11*40 + 1 = 18041 (prime)
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PROG
| (MAGMA) [n: n in [0..1000] | IsPrime(11*n^2+11*n+1)] [From Librandi, Nov 17 2010]
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CROSSREFS
| Sequence in context: A177859 A047580 A153384 * A202115 A047324 A057894
Adjacent sequences: A102654 A102655 A102656 * A102658 A102659 A102660
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KEYWORD
| nonn
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AUTHOR
| Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Feb 02 2005
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