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A005995 Alkane (or paraffin) numbers l(8,n).
(Formerly M2916)
+0
2
1, 3, 12, 28, 66, 126, 236, 396, 651, 1001, 1512, 2184, 3108, 4284, 5832, 7752, 10197, 13167, 16852, 21252, 26598, 32890, 40404, 49140, 59423, 71253, 85008, 100688, 118728, 139128, 162384, 188496, 218025 (list; graph; listen)
OFFSET

0,2

REFERENCES

S. M. Losanitsch, Die Isomerie-Arten bei den Homologen der Paraffin-Reihe, Chem. Ber. 30 (1897), 1917-1926.

L. Smith, Polynomial invariants of finite groups, Bull. Am. Math. Soc. 34 (1997), 211-250.

Winston C. Yang (paper in preparation).

LINKS

N. J. A. Sloane, Classic Sequences

FORMULA

G.f.: (1+3*x^2)/((1-x)^3*(1-x^2)^3).

CROSSREFS

Sequence in context: A066643 A140065 A115549 this_sequence A034503 A026557 A124052

Adjacent sequences: A005992 A005993 A005994 this_sequence A005996 A005997 A005998

KEYWORD

nonn

AUTHOR

njas, Winston C. Yang (yang(AT)math.wisc.edu)

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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