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Search: id:A104237
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| A104237 |
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G.f. (1+x^2-x^3+4x^4-3x^5+2x^6)/((x^5-x^4+2x^3+x+1)(x-1)(x+1)^2). |
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+0
1
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| 1, -2, 5, -11, 26, -53, 104, -198, 375, -700, 1299, -2401, 4432, -8167, 15038, -27676, 50925, -93686, 172337, -316999, 583078, -1072473, 1972612, -3628226, 6673379, -12274288, 22575967, -41523709, 76374044, -140473803, 258371642
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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A floretion-generated sequence involving Tribonacci numbers. Formula for the g.f. provided by Alec Mihailovs. See sequence A104187 for the sequence generated without using a cyclic transformation (i->j, j->k, k->i), i.e. 1lesforrokseq (refer to FAMP Code).
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PROGRAM
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Floretion Algebra Multiplication Program, FAMP Code: 1lesforcycrokseq[A*B} with A = - .5'ii' + .5'jj' + .5'kk' + .5e and B = + 'kj'. 1vesforcycrokseq[A*B] = A000004. ForType: 1A.
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CROSSREFS
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Cf. A104187.
Sequence in context: A001432 A127075 A053429 this_sequence A085945 A005469 A026787
Adjacent sequences: A104234 A104235 A104236 this_sequence A104238 A104239 A104240
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KEYWORD
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sign
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AUTHOR
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Creighton Dement (creighton.k.dement(AT)uni-oldenburg.de), Apr 02 2005
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