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Search: id:A109609
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| A109609 |
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Expansion of 1/((x-1)*(x+1)*(x^2+x+1)*(x^2+x-1)*(x^2-x+1)*(x^2+1)*(x^4-x^2+1)). |
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+0
1
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| 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 234, 378, 612, 990, 1602, 2592, 4194, 6786, 10980, 17766, 28746, 46512, 75259, 121771, 197030, 318801, 515831, 834632, 1350463, 2185095, 3535558, 5720653, 9256211, 14976864, 24233076, 39209940
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OFFSET
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0,3
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COMMENT
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FAMP Code for s batch of sequences satisfying the recurrence relation as (a(n)): A*B with A = - .25'i - .25i' - .25'ii' + .25'jj' + .25'kk' + .25'jk' + .25'kj' - .25e, B = + 'i + i' + 'ji' + 'ki' + e. Sumtype is set to: sum[Y[15]]
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MAPLE
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seriestolist(series(1/((x-1)*(x+1)*(x^2+x+1)*(x^2+x-1)*(x^2-x+1)*(x^2+1)*(x^4-x^\ 2+1)), x=0, 40));
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CROSSREFS
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Cf. A000045.
Sequence in context: A020695 A132916 A069041 this_sequence A073958 A074317 A077371
Adjacent sequences: A109606 A109607 A109608 this_sequence A109610 A109611 A109612
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KEYWORD
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nonn
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AUTHOR
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Creighton Dement (creighton.k.dement(AT)uni-oldenburg.de), Jul 31 2005
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