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Search: id:A086169
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| A086169 |
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Sum of the first n twin prime pairs. |
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1
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| 8, 20, 44, 80, 140, 224, 344, 488, 692, 908, 1184, 1484, 1844, 2228, 2624, 3080, 3560, 4100, 4664, 5288, 5984, 6824, 7688, 8612, 9656, 10796, 11996, 13232, 14516, 15836, 17456, 19100, 20756, 22472, 24236, 26276, 28340, 30440, 32564, 34748, 37052
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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For n = 4 we have twin prime pairs (3,5) (5,7) (11,13) (17,19) and 3+5+5+7+11+13+17+19 = 80
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PROGRAM
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(PARI) addnexttwin(n)= { s=0; for(x=1, n, if(prime(x+1)-prime(x)==2, s=s+prime(x+1)+prime(x); print1(s", ")) ) }
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CROSSREFS
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Sequence in context: A086062 A006416 A121307 this_sequence A107816 A036835 A101363
Adjacent sequences: A086166 A086167 A086168 this_sequence A086170 A086171 A086172
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KEYWORD
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nonn
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AUTHOR
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Cino Hilliard (hillcino368(AT)gmail.com), Aug 25 2003
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