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A038449 Sums of 7 distinct powers of 10. 1
1111111, 10111111, 11011111, 11101111, 11110111, 11111011, 11111101, 11111110, 100111111, 101011111, 101101111, 101110111, 101111011, 101111101, 101111110, 110011111, 110101111, 110110111, 110111011, 110111101 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..19.

MATHEMATICA

Take[Total/@Subsets[10^Range[0, 20], {7}]//Union, 20] (* Harvey P. Dale, Feb 25 2018 *)

CROSSREFS

Sequence in context: A229783 A176999 A035613 * A262498 A257937 A205735

Adjacent sequences:  A038446 A038447 A038448 * A038450 A038451 A038452

KEYWORD

nonn,easy

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified September 18 13:54 EDT 2021. Contains 347527 sequences. (Running on oeis4.)