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Search: id:A154502
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| A154502 |
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Sum of any 3 consecutive numbers is prime and a(n+2)-(a(n+1)+a(n)) is prime, a(0)=3,a(1)=31. |
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1
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OFFSET
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1,1
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COMMENT
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3+31+37=71;37-(3+31)=3,...
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MATHEMATICA
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a=3; b=31; lst={a, b}; Do[c=Prime[n]; p1=c+a+b; p2=c-(a+b); If[PrimeQ[p1]&&PrimeQ[p2], AppendTo[lst, c]; a=b; b=c], {n, 9, 9!}]; lst
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CROSSREFS
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Cf. A154484, A154485, A154486, A154487, A154488, A154493, A154494, A154495, A154496, A062391, A154497, A154498, A154500, A154501
Sequence in context: A023297 A077546 A141177 this_sequence A046282 A045709 A090151
Adjacent sequences: A154499 A154500 A154501 this_sequence A154503 A154504 A154505
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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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