A275983 Decimal expansion of 2^23209 - 1, the 26th Mersenne prime A000668(26).
4, 0, 2, 8, 7, 4, 1, 1, 5, 7, 7, 8, 9, 8, 8, 7, 7, 8, 1, 8, 1, 8, 7, 3, 3, 2, 9, 0, 7, 1, 5, 9, 1, 7, 6, 7, 7, 2, 2, 4, 3, 8, 5, 0, 6, 8, 9, 1, 6, 2, 2, 4, 2, 0, 0, 4, 1, 0, 2, 9, 9, 6, 3, 5, 7, 8, 6, 9, 4, 5, 9, 5, 2, 4, 0, 8, 8, 7, 4, 0, 0, 8, 6, 7, 6, 3, 9, 8, 6, 1, 4, 6, 1, 4, 6, 6, 5, 3, 7, 1, 0, 3, 8, 3, 3
Offset: 6987
Examples
40287411577898877818187332907159176772243850689162242004102996357869459...
Links
- Arkadiusz Wesolowski, Table of n, a(n) for n = 6987..13973
- Wikipedia, Mersenne prime
Crossrefs
Cf. A169684 = A000668(11), A169681 = A000668(12), A169685 = A000668(13), A204063 = A000668(14), A248931 = A000668(15), A248932 = A000688(16), A248933 = A000668(17), A248934 = A000668(18), A248935 = A000668(19), A248936 = A000668(20), A275977 = A000668(21), A275979 = A000668(22), A275980 = A000668(23), A275981 = A000668(24), A275982 = A000668(25), A275984 = A000668(27).
Programs
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Magma
Reverse(Intseq(2^23209-1))[1..105];
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Mathematica
First@RealDigits@N[2^23209 - 1, 100] (* G. C. Greubel, Aug 15 2016 *)
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PARI
eval(Vec(Str(2^23209-1)))[1..105]
Formula
2^A000043(26) - 1.