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URL: https://oeis.org/history?seq=A126631

⇱ The On-Line Encyclopedia of Integer Sequences (OEIS)

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Showing entries 1-10 | older changes
a(n) is the number of nonnegative integers k less than 10^n such that the decimal representation of k lacks the digit 1, at least one of digits 2,3, at least one of digits 4,5 and at least one of digits 6,7,8,9.
#18 by Harvey P. Dale at Fri Oct 14 17:23:12 EDT 2016
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#17 by Harvey P. Dale at Fri Oct 14 17:23:06 EDT 2016
MATHEMATICA
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#16 by Charles R Greathouse IV at Sat Jun 13 00:52:18 EDT 2015
LINKS
Discussion
Sat Jun 13
00:52
OEIS Server: https://oeis.org/edit/global/2439
#15 by Bruno Berselli at Sun Feb 22 11:10:45 EST 2015
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#14 by Joerg Arndt at Sun Feb 22 08:03:49 EST 2015
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#13 by Colin Barker at Sun Feb 22 07:59:48 EST 2015
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#12 by Colin Barker at Sun Feb 22 07:58:55 EST 2015
EXAMPLE
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#11 by Michel Marcus at Sun Feb 22 07:56:23 EST 2015
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#10 by Michel Marcus at Sun Feb 22 07:56:18 EST 2015
FORMULA
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#9 by Colin Barker at Sun Feb 22 07:40:10 EST 2015
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