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A178537
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(2n+1)^(2n+1) mod 2^(2n+1).
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7
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1, 3, 21, 119, 329, 339, 1533, 2031, 67857, 68491, 1472837, 7105255, 20933977, 91061443, 344607757, 137379807, 942687265, 22093239035, 115763405909, 23058549975, 581930881897, 8126485230643, 18131637168157, 69459897210831, 12202023051569, 1785877136688747, 4676672234192229, 4337085752026823, 51543753266508665, 431102794881380259, 338696479165696557
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OFFSET
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0,2
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LINKS
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FORMULA
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MAPLE
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local o ;
o := 2*n+1 ;
modp(o &^ o, 2^o) ;
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MATHEMATICA
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f[n_] := PowerMod[2n +1, 2n +1, 2^(2n +1)]; Array[f, 25, 0] (* Robert G. Wilson v, Dec 13 2016*)
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PROG
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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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