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A212803 Main diagonal of array in A212801. 1
1, 4, 108, 12800, 6050000, 11218701312, 81959473720768, 2376692369090150400, 275204089028043534645504, 127722545775271195902771200000, 238045190395699755964859156456705024, 1783083199654005767436422099232872202240000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

G. Kreweras, Complexite et circuits Euleriens dans les sommes tensorielles de graphes, J. Combin. Theory, B 24 (1978), 202-212.

LINKS

Table of n, a(n) for n=1..12.

CROSSREFS

Cf. A212801.

Sequence in context: A061464 A107048 A185702 * A002109 A076265 A114876

Adjacent sequences:  A212800 A212801 A212802 * A212804 A212805 A212806

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, May 27 2012

STATUS

approved

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Last modified May 23 10:42 EDT 2013. Contains 225587 sequences.