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A124217
Expansion of (1-x-x^2)/(1-2x-x^2+x^4).
+0
2
1, 1, 2, 5, 11, 26, 61, 143, 336, 789, 1853, 4352, 10221, 24005, 56378, 132409, 310975, 730354, 1715305, 4028555, 9461440, 22221081, 52188297, 122569120, 287865097, 676078233, 1587833266, 3729175645, 8758319459, 20569736330
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.
AT&T Labs Research
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