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Search: id:A154497
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| A154497 |
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Sum of any 3 consecutive numbers is prime, a(0)=3,a(1)=11. |
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+0
5
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| 3, 11, 17, 19, 23, 29, 31, 37, 41, 53, 73, 97, 101, 109, 127, 131, 139, 149, 151, 157, 179, 211, 223, 227, 233, 241, 269, 277, 281, 349, 353, 359, 379, 433, 467, 499, 521, 523, 557, 577, 587, 613, 631, 743, 757, 769, 821, 827, 829, 883, 947, 967, 983, 1013, 1087
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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3+11+17=31, 11+17+19=47, 17+19+23=59,...
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MATHEMATICA
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a=3; b=11; lst={a, b}; Do[c=Prime[n]; p=a+b+c; If[PrimeQ[p], AppendTo[lst, c]; a=b; b=c], {n, 5, 6!}]; lst
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CROSSREFS
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Cf. A154484, A154485, A154486, A154487, A154488, A154493, A154494, A154495, A154496, A062391
Sequence in context: A030765 A035337 A029500 this_sequence A038946 A095280 A085317
Adjacent sequences: A154494 A154495 A154496 this_sequence A154498 A154499 A154500
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KEYWORD
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nonn
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AUTHOR
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Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 10 2009
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