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Search: id:A114688
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A114688 Expansion of (-1-3*x+x^2)/((1-x)*(x+1)*(x^2+2*x-1)); a Pellian-related sequence. +0
5
1, 5, 11, 30, 71, 175, 421, 1020, 2461, 5945, 14351, 34650, 83651, 201955, 487561, 1177080, 2841721, 6860525, 16562771, 39986070, 96534911, 233055895, 562646701, 1358349300, 3279345301 (list; graph; listen)
OFFSET

0,2

COMMENT

Generating floretion: - 1.5'i + 'j + 'k - .5i' + j' + k' + .5'ii' - .5'jj' - .5'kk' - 'ij' + 'ik' - 'ji' + .5'jk' + 2'ki' - .5'kj' + .5e

CROSSREFS

Cf. A100828, A114647, A114689, A114695, A114696, A114697, A000129.

Sequence in context: A121534 A090119 A088484 this_sequence A092963 A045453 A052228

Adjacent sequences: A114685 A114686 A114687 this_sequence A114689 A114690 A114691

KEYWORD

easy,nonn

AUTHOR

Creighton Dement (creighton.k.dement(AT)uni-oldenburg.de), Feb 18 2006

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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