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A001341 E.g.f.: 6*exp(x)/(1-x)^4;
(Formerly M4205 N1755)
+0
2
6, 30, 174, 1158, 8742, 74046, 696750, 7219974, 81762438, 1005151902, 13336264686, 189992451270, 2893180308774, 46904155833918, 806663460996462, 14669947577257926, 281298999630211590, 5672559830998316574, 120014233288249367598, 2658221288671765756422 (list; graph; listen)
OFFSET

0,1

REFERENCES

Biondi, E.; Divieti, L.; Guardabassi, G.; Counting paths, circuits, chains, and cycles in graphs: A unified approach. Canad. J. Math. 22 1970 22-35.

CROSSREFS

Sequence in context: A026331 A135490 A110706 this_sequence A089896 A057754 A001473

Adjacent sequences: A001338 A001339 A001340 this_sequence A001342 A001343 A001344

KEYWORD

nonn

AUTHOR

njas and Simon Plouffe (plouffe(AT)math.uqam.ca)

EXTENSIONS

Error in definition corrected Jan 30 2008

More terms from njas, Jan 30 2008

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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