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Search: id:A049171
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A049171 Revert transform of 2*(1 + x + x^2)-1/(1-x). +0
1
1, 1, 3, 9, 33, 125, 503, 2081, 8849, 38345, 168875, 753401, 3398177, 15469493, 70984559, 327982529, 1524644897, 7125440913, 33459931155, 157794990633, 747021246817, 3548843286829, 16912921740775, 80836929471329 (list; graph; listen)
OFFSET

1,3

COMMENT

Sign diagram of generating sequence: +++-------------...

LINKS

Index entries for reversions of series

CROSSREFS

Sequence in context: A039648 A049182 A049168 this_sequence A050387 A049157 A138178

Adjacent sequences: A049168 A049169 A049170 this_sequence A049172 A049173 A049174

KEYWORD

nonn

AUTHOR

Olivier Gerard (olivier.gerard(AT)gmail.com)

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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