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Search: id:A152091
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| A152091 |
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Primes which are the sum of cousin prime pairs + 1. |
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+0
6
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| 11, 19, 31, 43, 79, 139, 163, 199, 211, 223, 331, 463, 619, 631, 883, 919, 1231, 1291, 1483, 1543, 1723, 1759, 1879, 2179, 2851, 2971, 3163, 3331, 3391, 3571, 3739, 4003, 4483, 4591, 4759, 4783, 4951, 5323, 5419, 5503, 6043, 6079, 6163, 6379, 6691, 7351
(list; graph; listen)
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OFFSET
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2,1
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FORMULA
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Cousin primes are prime pairs that differ by 4. Prime(n): the nth prime number.
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EXAMPLE
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prime(2)=3,3+4=7, 3+7+1= 11, the first term in the sequence.
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PROGRAM
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(PARI) g4(n) = for(x=2, n, p=prime(x); if(isprime(p+4), y=p+p+4+1; if(isprime(y), print1(y", "))))
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CROSSREFS
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Sequence in context: A094517 A049719 A155555 this_sequence A122869 A106535 A052368
Adjacent sequences: A152088 A152089 A152090 this_sequence A152092 A152093 A152094
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KEYWORD
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nonn
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AUTHOR
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Cino Hilliard (hillcino368(AT)hotmail.com), Nov 24 2008
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