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5, 22, 59, 64, 165, 170, 367, 624, 629, 1030, 1035, 1612, 2289, 2294, 2311, 2316, 2329, 3626, 3631, 5232, 5237, 5250, 5279, 5284, 5325, 5330, 8247, 11384, 11389, 11402, 11407, 11424, 15781, 15786, 15799, 15804, 21281, 21334, 21339, 21376
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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REFERENCES
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Richard Friedberg, An Adventurer's Guide to Number Theory, McGraw-Hill, NY, 1968.
Popular Computing (Calabasas, CA), Friedberg's Sequence, Vol. 5 (No. 46, Jan 1977), page PC46-2.
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LINKS
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MATHEMATICA
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Accumulate[Table[FactorInteger[4*n^2+1][[1, 1]], {n, 40}]] (* Ivan N. Ianakiev, Apr 20 2015 *)
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PROG
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(Haskell)
a256971 n = a256971_list !! (n-1)
a256971_list = scanl1 (+) a256970_list
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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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