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Search: id:A111663
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| A111663 |
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Expansion of (-1+x^3+x^6+x^9)/((1-x)*(2*x-1)*(x^2+1)*(x^2+x+1)*(x^4-x^2+1)). |
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+0
2
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| 1, 2, 4, 8, 16, 32, 62, 124, 248, 494, 988, 1976, 3952, 7904, 15808, 31616, 63232, 126464, 252926, 505852, 1011704, 2023406, 4046812, 8093624, 16187248, 32374496, 64748992, 129497984, 258995968, 517991936, 1035983870, 2071967740
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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Initial terms factored: [1,2,(2)^2,(2)^3,(2)^4,(2)^5,(2) (31),(2)^2 (31),(2)^3 (31),(2) (13) (19),(2)^2 (13) (19),(2)^3 (13) (19),(2)^4 (13) (19),(2)^5 (13) (19),(2)^6 (13) (19),(2)^7 (13) (19),(2)^8 (13) (19),(2)^9 (13) (19),(2) (17) (43) (173),(2)^2 (17) (43) (173),(2)^3 (17) (43) (173),(2) (7)^2 (11) (1877),(2)^2 (7)^2 (11) (1877),(2)^3 (7)^2 (11) (1877),(2)^4 (7)^2 (11) (1877),(2)^5 (7)^2 (11) (1877),(2)^6 (7)^2 (11) (1877),(2)^7 (7)^2 (11) (1877),(2)^8 (7)^2 (11) (1877),(2)^9 (7)^2 (11) (1877)]
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PROGRAM
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Floretion Algebra Multiplication Program, FAMP Code: 2jbaseksumseq[.5'i + .5i' + .5'ii' + .5'jj' + .5'kk' + .5e], sumtype: sum[(Y[0], Y[1], Y[2]), mod(3)
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CROSSREFS
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Cf. A111662.
Sequence in context: A059173 A027560 A135493 this_sequence A054043 A052396 A051040
Adjacent sequences: A111660 A111661 A111662 this_sequence A111664 A111665 A111666
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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), Aug 14 2005
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