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Search: id:A110293
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| 1, 7, 13, 97, 181, 1351, 2521, 18817, 35113, 262087, 489061, 3650401, 6811741, 50843527, 94875313, 708158977, 1321442641, 9863382151, 18405321661, 137379191137, 256353060613, 1913445293767, 3570537526921, 26650854921601
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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See also A110294 (compare program code).
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FORMULA
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G.f. (1+7*x-x^2-x^3)/((x^2-4*x+1)*(x^2+4*x+1))
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MAPLE
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seriestolist(series((1+7*x-x^2-x^3)/((x^2-4*x+1)*(x^2+4*x+1)), x=0, 25)); -or- Floretion Algebra Multiplication Program, FAMP Code: 1leszapseq[A*B] with A = - 'j + 'k - j' + k' - 'ii' - 'ij' - 'ik' - 'ji' - 'ki' and B = + .5'ij' + .5'ji'
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CROSSREFS
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Cf. A001570, A011943, A110294.
Sequence in context: A073220 A110455 A132373 this_sequence A039687 A001544 A136720
Adjacent sequences: A110290 A110291 A110292 this_sequence A110294 A110295 A110296
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KEYWORD
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easy,nonn
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AUTHOR
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Creighton Dement (creighton.k.dement(AT)uni-oldenburg.de), Jul 18 2005
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