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Search: id:A005999
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A005999 Number of paraffins.
(Formerly M1577)
+0
1
1, 2, 6, 11, 23, 38, 64, 95, 141, 194, 266, 347, 451, 566, 708, 863, 1049, 1250, 1486, 1739, 2031, 2342, 2696, 3071, 3493, 3938, 4434, 4955, 5531, 6134, 6796, 7487, 8241, 9026, 9878, 10763, 11719, 12710, 13776 (list; graph; listen)
OFFSET

1,2

REFERENCES

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

FORMULA

G.f.: (x^5+2*x^4+x^3+x^2+1)/(-1+x)^2/(-1+x^2)^2.

CROSSREFS

Sequence in context: A083322 A073939 A085264 this_sequence A102429 A080012 A103143

Adjacent sequences: A005996 A005997 A005998 this_sequence A006000 A006001 A006002

KEYWORD

nonn,easy

AUTHOR

njas

page 1

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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