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A159049
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Primes of the form (5+ a triangular number A000217).
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1
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5, 11, 41, 71, 83, 281, 383, 1181, 1601, 2351, 2633, 3491, 3833, 4283, 5783, 6221, 6791, 8783, 10301, 10883, 11633, 12251, 14033, 15581, 18341, 26111, 26801, 30881, 31883, 34721, 38231, 41333, 41621, 42491, 43961, 46061, 47591, 53633, 60383
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| 11 is in the list because it is A000217(3)+5 and a prime. 41=36+5= A000217(8)+5 is a prime. 71=66+5=A000217(11)+5 is a prime.
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MATHEMATICA
| s=0; lst={}; Do[s+=n; p=s+5; If[PrimeQ[p], AppendTo[lst, p]], {n, 0, 7!}]; lst
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CROSSREFS
| Cf. A055469, A055472, A159047, A159048
Sequence in context: A089441 A046121 A023271 * A047976 A006382 A055113
Adjacent sequences: A159046 A159047 A159048 * A159050 A159051 A159052
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KEYWORD
| nonn,easy
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AUTHOR
| Vladimir Orlovsky (4vladimir(AT)gmail.com), Apr 03 2009
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EXTENSIONS
| Definition rephrased, R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 05 2009
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