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A106511 Expansion of (1+x)^2/((1+x+x^2)(1+x-x^2)). +0
2
1, 0, 0, 0, 1, -2, 3, -4, 6, -10, 17, -28, 45, -72, 116, -188, 305, -494, 799, -1292, 2090, -3382, 5473, -8856, 14329, -23184, 37512, -60696, 98209, -158906, 257115, -416020, 673134, -1089154, 1762289, -2851444, 4613733, -7465176, 12078908, -19544084, 31622993 (list; graph; listen)
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Last modified December 5 08:23 EST 2009. Contains 170348 sequences.


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