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Search: id:A135417
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A135417 Number of mountain numbers (see A134941) with n digits. +0
2
1, 0, 8, 56, 252, 784, 1792, 3108, 4166, 4352, 3544, 2232, 1068, 376, 92, 14, 1 (list; graph; listen)
OFFSET

1,3
COMMENT

The total number is 21846.

CROSSREFS

Sequence in context: A044146 A118772 A003210 this_sequence A068552 A034006 A081626

Adjacent sequences: A135414 A135415 A135416 this_sequence A135418 A135419 A135420

KEYWORD

base,nonn,fini,full

AUTHOR

Suggested by Jonathan Vos Post, Nov 24 2007 and computed by Hans Havermann and Joshua Zucker, Nov 25 2007

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Last modified December 9 14:43 EST 2009. Contains 170430 sequences.

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