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Search: id:A100418
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| A100418 |
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Numbers n such that 30*n+{1,11,13,17,19,23,29} are all prime. |
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+0
7
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| 49, 34083, 41545, 48713, 140609, 524027, 616812, 855281, 1314397, 1324750, 1636152, 2281293, 2927134, 3401412, 3605413, 4989341, 5212221, 5284979, 5406303, 5645269, 6141254, 6342728, 7231434, 7347697, 7637329, 8027068
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OFFSET
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1,1
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COMMENT
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30*a(n)+7 is therefore divisible by 7 and composite.
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PROGRAM
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(PARI) {pav7(mx)= local(wp=[1, 11, 13, 17, 19, 23, 29], v=[], i, j, m); for(k=1, mx, i=k*30; j=1; m=1; while(m&&(j<8), m=isprime(i+wp[j]); j+=1); if(m, v=concat(v, k))); return(v)}
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CROSSREFS
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Cf. A005776, A007775, A076205, A100418-A100423.
Sequence in context: A094199 A145251 A013741 this_sequence A144928 A134725 A013843
Adjacent sequences: A100415 A100416 A100417 this_sequence A100419 A100420 A100421
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KEYWORD
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easy,nonn
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AUTHOR
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Ferenc Adorjan (fadorjan(AT)freemail.hu), Nov 19 2004
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EXTENSIONS
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Edited by Don Reble (djr(AT)nk.ca), Nov 17 2005
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