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Search: id:A140353
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| A140353 |
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First even numbers jumped in a sum of two sequential prime numbers. |
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+0
2
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| 20, 22, 26, 28, 32, 38, 40, 46, 50, 52, 56, 62, 68, 70, 76, 80, 82, 88, 92, 98, 106, 110, 112, 116, 118, 122, 136, 140, 146, 148
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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See Goldbach Conjecture.
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FORMULA
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a(n) = Prime(n)+11 - 2 (for prime > 7)
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EXAMPLE
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11 + 7 = 18, 11 + 11 = 22 --> 20 was jumped
13 + 7 = 20, 13 + 11 = 24 --> 22 was jumped
17 + 7 = 24, 17 + 11 = 28 --> 26 was jumped
and soon
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CROSSREFS
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Sequence in context: A095445 A094203 A095439 this_sequence A036227 A133260 A163630
Adjacent sequences: A140350 A140351 A140352 this_sequence A140354 A140355 A140356
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KEYWORD
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easy,nonn,uned
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AUTHOR
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Odimar Fabeny (aifab(AT)yahoo.com.br), May 30 2008
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