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Search: id:A087884
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A087884 a(n) = PrimePi[PrimePi[n-1]] + Prime[Abs[n - Prime[n-1]]] +0
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3, 4, 13, 15, 25, 31, 43, 63, 70, 92, 106, 110, 130, 154, 183, 185, 215, 233, 237, 267, 281, 315, 357, 377, 383, 401, 405, 425, 504, 526, 568, 574, 622, 624, 658, 688, 714, 748, 779, 793, 859, 863, 883, 887, 973, 1039, 1057, 1067, 1093, 1115, 1123, 1199 (list; graph; listen)
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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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