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A248932 Decimal expansion of 2^2203 - 1, the 16th Mersenne prime A000668(16). 18
1, 4, 7, 5, 9, 7, 9, 9, 1, 5, 2, 1, 4, 1, 8, 0, 2, 3, 5, 0, 8, 4, 8, 9, 8, 6, 2, 2, 7, 3, 7, 3, 8, 1, 7, 3, 6, 3, 1, 2, 0, 6, 6, 1, 4, 5, 3, 3, 3, 1, 6, 9, 7, 7, 5, 1, 4, 7, 7, 7, 1, 2, 1, 6, 4, 7, 8, 5, 7, 0, 2, 9, 7, 8, 7, 8, 0, 7, 8, 9, 4, 9, 3, 7, 7, 4, 0, 7, 3, 3, 7, 0, 4, 9, 3, 8, 9, 2, 8, 9, 3, 8, 2, 7, 4 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

664,2

COMMENTS

The 13th through the 17th Mersenne primes were found in 1952 by Raphael M. Robinson, using SWAC.

LINKS

Arkadiusz Wesolowski, Table of n, a(n) for n = 664..1327

D. H. Lehmer, Two New Mersenne Primes, Mathematics of Computation, vol. 7, No. 41 (1952), p. 72.

Wikipedia, Mersenne prime

FORMULA

2^A000043(16) - 1.

EXAMPLE

14759799152141802350848986227373817363120661453331697751477712164785702...

MATHEMATICA

RealDigits[2^2203-1, 10, 120][[1]] (* Harvey P. Dale, Oct 09 2017 *)

PROG

(MAGMA) Reverse(Intseq(2^2203-1));

(PARI) eval(Vec(Str(2^2203-1)))

CROSSREFS

Cf. A169684 = A000668(11), A169681 = A000668(12), A169685 = A000668(13), A204063 = A000668(14), A248931 = A000668(15), A248933 = A000668(17), A248934 = A000668(18), A248935 = A000668(19), A248936 = A000668(20).

Sequence in context: A196566 A197566 A237198 * A046549 A331138 A051544

Adjacent sequences:  A248929 A248930 A248931 * A248933 A248934 A248935

KEYWORD

nonn,cons,easy,fini,full

AUTHOR

Arkadiusz Wesolowski, Oct 17 2014

STATUS

approved

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Last modified July 14 10:07 EDT 2020. Contains 335721 sequences. (Running on oeis4.)