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Search: id:A164125
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| 11, 10, 128, 22, 60, 524, 180, 156, 156, 180, 58, 180, 66, 90, 90, 66, 90, 6320, 714, 1008, 2190, 2650, 1722, 198, 1722, 41510, 810, 594, 1620, 6570, 3546, 5736, 1620, 1404, 810, 594, 1620, 522, 4428, 810, 1332, 1620, 1404, 7356, 594, 810, 3546, 2214
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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Differences between primes that are palindromic in base 3.
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EXAMPLE
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a(4) = 22 = A029971(5)-A029971(4).
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MATHEMATICA
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f[n_]:=FromDigits[RealDigits[n, 3][[1]]]==FromDigits[Reverse[RealDigits[n, 3][[1]]]]; a=2; lst={}; Do[p=Prime[n]; If[f[p], AppendTo[lst, p-a]; a=p], {n, 1, 8!, 1}]; lst
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CROSSREFS
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Cf. A164124, A029971, A016041
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KEYWORD
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nonn,base,new
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AUTHOR
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Vladimir Orlovsky (4vladimir(AT)gmail.com), Aug 10 2009
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EXTENSIONS
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Definition simplified, initial 0 removed by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Nov 17 2009
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