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A128214
Expansion of (1+2x+3x^2)/(1+x+x^2)^2.
+0
2
1, 0, 0, -2, 3, 0, -5, 6, 0, -8, 9, 0, -11, 12, 0, -14, 15, 0, -17, 18, 0, -20, 21, 0, -23, 24, 0, -26, 27, 0, -29, 30, 0, -32, 33, 0, -35, 36, 0, -38, 39, 0, -41, 42, 0, -44, 45, 0, -47, 48, 0, -50, 51, 0, -53, 54
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Maintained by
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njas@research.att.com
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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.
AT&T Labs Research
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