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A114645 The numbers 2^n-1 written in groups of three digits, with leading zeros omitted. 5
137, 153, 163, 127, 255, 511, 102, 320, 474, 95, 819, 116, 383, 327, 676, 553, 513, 107, 126, 214, 352, 428, 710, 485, 752, 97, 151, 419, 430, 383, 886, 71, 677, 721, 533, 554, 431, 671, 88, 631, 342, 177, 272, 684, 354, 555, 368, 709, 111, 73, 741, 823, 214, 748 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

Heard over coffee at the Computers in Scientific Discovery meeting in Ghent, Feb 02 2006

LINKS

Alois P. Heinz, Table of n, a(n) for n = 1..10000

EXAMPLE

1,3,7,15,31,63,...

MATHEMATICA

FromDigits[#] & /@ Partition[ Flatten[ IntegerDigits[ Table[ 2^n - 1, {n, 31}]]], 3] (* Robert G. Wilson v, Jun 23 2014 *)

CROSSREFS

Sequence in context: A138329 A066477 A139647 * A057879 A179912 A108382

Adjacent sequences:  A114642 A114643 A114644 * A114646 A114647 A114648

KEYWORD

nonn,base,dumb

AUTHOR

N. J. A. Sloane, Feb 18 2006

EXTENSIONS

More terms from Matthew Conroy, Mar 12 2006

STATUS

approved

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Last modified November 21 04:56 EST 2019. Contains 329350 sequences. (Running on oeis4.)