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Search: id:A081291
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A081291 Complement of A072795. +0
21
0, 3, 6, 7, 8, 14, 15, 16, 17, 18, 19, 20, 21, 22, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128 (list; graph; listen)
OFFSET

0,2

COMMENT

This gives positions of those terms in A063171 which begin with digits 11... Also the elements of table A072764 which do not occur in the leftmost column. See the comment at A081292.

FORMULA

a(0)=0, a(n) = n + A014137(A081288(n)-1)

CROSSREFS

a(n) = A080300(A081292(n)) = A081289(n) + n - A081290(n).

Sequence in context: A099850 A157041 A139451 this_sequence A034091 A111717 A021735

Adjacent sequences: A081288 A081289 A081290 this_sequence A081292 A081293 A081294

KEYWORD

nonn

AUTHOR

Antti Karttunen (Firstname.Surname(AT)iki.fi) Mar 17 2003

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.


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