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Search: id:A125631
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| A125631 |
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Numbers of the form 2*prime(i) - prime(i+1) + 2. |
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+0
2
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| 3, 5, 11, 17, 19, 27, 29, 35, 41, 43, 49, 57, 59, 65, 69, 71, 77, 79, 83, 95, 101, 107, 125, 127, 131, 137, 147, 149, 153, 161, 163, 169, 173, 179, 189, 191, 197, 201, 221, 227, 229, 233, 239, 247, 253, 259, 267, 269, 275, 281, 305, 311, 327, 329, 347, 349, 353
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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A124115 sorted and duplicates removed.
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EXAMPLE
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2*prime(21) - prime(22) + 2 = 2*73 - 79 + 2 = 69, so 69 is in the sequence.
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PROGRAM
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(PARI) {p=2; q=3; v=[]; while(p<370, v=concat(v, 2*p-q+2); p=q; q=nextprime(q+1)); v=listsort(List(v), 1); for(j=1, #v-1, print1(v[j], ", "))}
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CROSSREFS
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Cf. A124115.
Sequence in context: A006169 A088328 A102643 this_sequence A045408 A092740 A045409
Adjacent sequences: A125628 A125629 A125630 this_sequence A125632 A125633 A125634
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KEYWORD
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nonn
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AUTHOR
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Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Nov 28 2006
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