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A049181 Revert transform of 2*(1 + x + x^2 + x^3 + x^4 + x^5 + x^6)-1/(1-x). 0
1, 1, 1, 1, 1, 1, 3, 17, 73, 241, 661, 1585, 3461, 7285, 16231, 41921, 124577, 389233, 1186617, 3423201, 9327801, 24355849, 62489483, 162336209, 437155705, 1226390417, 3534342301, 10244919841, 29383388701, 82792942045 (list; graph; refs; listen; history; internal format)
OFFSET

1,7

COMMENTS

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

LINKS

Index entries for reversions of series

CROSSREFS

Sequence in context: A034566 A069468 A128948 * A179596 A191587 A142868

Adjacent sequences:  A049178 A049179 A049180 * A049182 A049183 A049184

KEYWORD

nonn

AUTHOR

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

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Last modified February 13 17:43 EST 2012. Contains 205523 sequences.