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A205711
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Positions of multiples of 9 in A204890 (differences of primes).
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1
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7, 31, 37, 41, 51, 63, 69, 75, 82, 92, 96, 101, 112, 123, 129, 133, 140, 150, 159, 164, 178, 187, 198, 202, 214, 224, 228, 232, 236, 241, 246, 260, 269, 273, 280, 290, 294, 298, 301, 305, 310, 315, 323, 331, 336, 344, 358, 367, 371, 375, 386, 390
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OFFSET
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1,1
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COMMENTS
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For a guide to related sequences, see A205558.
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LINKS
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EXAMPLE
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In A204890=(1,3,2,5,4,2,9,8,6,4,11,10,8,...), multiples of 9 are in positions 7,31,37,... See the example at A205712.
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MATHEMATICA
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With[{prs=Prime[Range[30]]}, Flatten[Position[Flatten[Table[prs[[n]]- Take[ prs, n-1], {n, 2, Length[prs]}]], _?(Divisible[#, 9]&)]]] (* Harvey P. Dale, Dec 01 2013 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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