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Search: id:A129026
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A129026 (1/2)*(n^4+11*n^3+53*n^2+97*n+54). +0
2
0, 27, 108, 282, 600, 1125, 1932, 3108, 4752, 6975, 9900, 13662, 18408, 24297, 31500, 40200, 50592, 62883, 77292, 94050, 113400, 135597, 160908, 189612, 222000, 258375, 299052, 344358, 394632, 450225, 511500, 578832, 652608, 733227, 821100, 916650 (list; graph; listen)
OFFSET

-1,2

REFERENCES

Gordon G. Cash and Jerry Ray Dias, Computation, Properties and Resonance Topology of Benzenoid Monoradicals and Polyradicals and the Eigenvectors Belonging to Their Zero Eigenvalues, J. Math. Chem., 30 (2001), 429-444. [See Fig. 2.]

CROSSREFS

Adjacent sequences: A129023 A129024 A129025 this_sequence A129027 A129028 A129029

Sequence in context: A044278 A044659 A134171 this_sequence A042426 A042424 A143938

KEYWORD

nonn

AUTHOR

njas, May 10 2007

page 1

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Last modified October 7 08:31 EDT 2008. Contains 144667 sequences.


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