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%I #17 Apr 05 2024 16:53:56
%S 1,7,0,1,4,1,1,8,3,4,6,0,4,6,9,2,3,1,7,3,1,6,8,7,3,0,3,7,1,5,8,8,4,1,
%T 0,5,7,2,7
%N Decimal expansion of 2^127-1.
%C The 12th Mersenne prime, A000668(12); 127 = A000043(12). Also, the fifth Catalan number A007013(4). - _M. F. Hasler_, Jan 09 2013
%H Wikipedia, <a href="http://en.wikipedia.org/wiki/Mersenne_prime">Mersenne prime</a>
%F 2^127-1 = 2^A000043(12)-1 = A000668(12). - _M. F. Hasler_, Jan 09 2013
%e 170141183460469231731687303715884105727.
%t IntegerDigits[2^127 - 1] (* _Paolo Xausa_, Apr 05 2024 *)
%o (Magma) Reverse(Intseq(2^127-1)); // _Arkadiusz Wesolowski_, Oct 18 2014
%Y Cf. A169684 = A000668(11), A169685 = A000668(13), A204063 = A000668(14), A248931 = A000668(15), A248932 = A000668(16), A248933 = A000668(17), A248934 = A000668(18), A248935 = A000668(19), A248936 = A000668(20).
%K nonn,cons,easy,fini,full,changed
%O 39,2
%A _Vincenzo Librandi_, Apr 12 2010
%E Edited by _N. J. A. Sloane_, Apr 13 2010
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