The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A248934 Decimal expansion of 2^3217 - 1, the 18th Mersenne prime A000668(18). 19
 2, 5, 9, 1, 1, 7, 0, 8, 6, 0, 1, 3, 2, 0, 2, 6, 2, 7, 7, 7, 6, 2, 4, 6, 7, 6, 7, 9, 2, 2, 4, 4, 1, 5, 3, 0, 9, 4, 1, 8, 1, 8, 8, 8, 7, 5, 5, 3, 1, 2, 5, 4, 2, 7, 3, 0, 3, 9, 7, 4, 9, 2, 3, 1, 6, 1, 8, 7, 4, 0, 1, 9, 2, 6, 6, 5, 8, 6, 3, 6, 2, 0, 8, 6, 2, 0, 1, 2, 0, 9, 5, 1, 6, 8, 0, 0, 4, 8, 3, 4, 0, 6, 5, 5, 0 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 969,1 COMMENTS The prime was found on September 8, 1957, by Hans Riesel, using BESK. LINKS Arkadiusz Wesolowski, Table of n, a(n) for n = 969..1937 Hans Riesel, A New Mersenne Prime, Mathematics of Computation, vol. 12 (1958), p. 60. Wikipedia, Mersenne prime FORMULA Equals 2^A000043(18) - 1. EXAMPLE 25911708601320262777624676792244153094181888755312542730397492316187401... MATHEMATICA RealDigits[2^3217 - 1, 10, 100][[1]] (* G. C. Greubel, Oct 03 2017 *) PROG (Magma) Reverse(Intseq(2^3217-1)); (PARI) eval(Vec(Str(2^3217-1))) CROSSREFS Cf. A169684 = A000668(11), A169681 = A000668(12), A169685 = A000668(13), A204063 = A000668(14), A248931 = A000668(15), A248932 = A000668(16), A248933 = A000668(17), A248935 = A000668(19), A248936 = A000668(20). Sequence in context: A021390 A201934 A019802 * A011432 A347345 A324835 Adjacent sequences: A248931 A248932 A248933 * A248935 A248936 A248937 KEYWORD nonn,cons,easy,fini,full AUTHOR Arkadiusz Wesolowski, Oct 17 2014 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 4 01:12 EDT 2024. Contains 374905 sequences. (Running on oeis4.)