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A108929
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Expansion of (1-x^4-2*x^3)/((x-1)*(x^2+x+1)*(x^2+4*x-1)).
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0
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1, 4, 17, 71, 300, 1271, 5383, 22802, 96591, 409165, 1733250, 7342165, 31101909, 131749800, 558101109, 2364154235, 10014718048, 42423026427, 179706823755, 761250321446, 3224708109539, 13660082759601, 57865039147942
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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MAPLE
| seriestolist(series((1-x^4-2*x^3)/((x-1)*(x^2+x+1)*(x^2+4*x-1)), x=0, 25)); -or- -1kbaseksum[A*B] with A = - 'i + 'j - i' + j' - 'kk' - 'ik' - 'jk' - 'ki' - 'kj' and B = + .5'i + .5i'; SumType: default
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CROSSREFS
| Sequence in context: A136792 A188482 A179606 * A022031 A001076 A122451
Adjacent sequences: A108926 A108927 A108928 * A108930 A108931 A108932
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KEYWORD
| easy,nonn
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AUTHOR
| Creighton Dement (creighton.k.dement(AT)uni-oldenburg.de), Jul 19 2005
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