cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A169684 Decimal expansion of 2^107 - 1.

Original entry on oeis.org

1, 6, 2, 2, 5, 9, 2, 7, 6, 8, 2, 9, 2, 1, 3, 3, 6, 3, 3, 9, 1, 5, 7, 8, 0, 1, 0, 2, 8, 8, 1, 2, 7
Offset: 33

Views

Author

N. J. A. Sloane, Apr 13 2010

Keywords

Comments

The 11th Mersenne prime A000668(11), see also the formula, and A134731, A169681, A169685 for the next three terms in that sequence. - M. F. Hasler, Jan 09 2013

Examples

			162259276829213363391578010288127.
		

Crossrefs

Cf. A169681 = A000668(12), A169685 = A000668(13), A204063 = A000668(14), A248931 = A000668(15), A248932 = A000668(16), A248933 = A000668(17), A248934 = A000668(18), A248935 = A000668(19), A248936 = A000668(20).

Programs

  • Magma
    Reverse(Intseq(2^107-1)); // Arkadiusz Wesolowski, Oct 18 2014
    
  • Mathematica
    IntegerDigits[2^107-1] (* Paolo Xausa, Oct 07 2023 *)
  • PARI
    eval(Vec(Str(2^107-1))) \\ or simply: digits(2^107-1) in PARI version 2.6+. - M. F. Hasler, Jan 09 2013

Formula

2^107 - 1 = 2^A000043(11) - 1 = A000668(11). - M. F. Hasler, Jan 09 2013