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A049164 Recip transform of 2*(1 + x^2 + x^4 + x^6)-1/(1-x). 0
1, 1, 1, 1, 1, 1, 1, 1, 3, 23, 135, 599, 2187, 6947, 19899, 52667, 131109, 311525, 717525, 1635781, 3802461, 9332573, 24773869, 70874381, 212534247, 646664443, 1949536667, 5749101579, 16503012263, 46118290863 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,9
COMMENTS
Sign diagram of generating sequence: +-+-+-+--------...
LINKS
CROSSREFS
Sequence in context: A154648 A031970 A196881 * A081413 A179328 A255952
KEYWORD
nonn
AUTHOR
STATUS
approved

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Last modified February 22 19:48 EST 2024. Contains 370260 sequences. (Running on oeis4.)