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A007979 Expansion of (1+x^2)(1+x^4)/((1-x)^2*(1-x^2)*(1-x^3)). 0
1, 2, 5, 9, 16, 25, 39, 56, 79, 107, 142, 183, 233, 290, 357, 433, 520, 617, 727, 848, 983, 1131, 1294, 1471, 1665, 1874, 2101, 2345, 2608, 2889, 3191, 3512, 3855, 4219, 4606, 5015, 5449, 5906 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

LINKS

A. R. Calderbank and N. J. A. Sloane, Double circulant codes over Z_4, J. Algeb. Combin., 6 (1997) 119-131 (Abstract, pdf, ps).

CROSSREFS

Sequence in context: A169740 A138226 A175287 * A097701 A056870 A014739

Adjacent sequences:  A007976 A007977 A007978 * A007980 A007981 A007982

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 15 21:27 EST 2012. Contains 205859 sequences.