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A122877
Expansion of (1-2x-3x^2-(1-x)*sqrt(1-2x-7x^2))/(8x^3).
+0
1
0, 1, 2, 7, 20, 65, 206, 679, 2248, 7569, 25690, 88055, 303964, 1056497, 3693158, 12977655, 45813008, 162400609, 577843890, 2063053991, 7388487460, 26535797729, 95552015614, 344897769991, 1247685613272
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Maintained by
N. J. A. Sloane
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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.
AT&T Labs Research
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