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A054747 Number of inequivalent n-state 2-input 2-output automata with respect to an input permutation. 1
3, 76, 4003, 352744, 41876694, 6217447912, 1106509486839, 229553329028386, 54393886281136386, 14493994916221695566, 4289933406949379595583, 1396384878753272032544946, 495758886710258565409900342 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Inverse Euler transform of A000282.

REFERENCES

F. Harary and E. Palmer, Graphical Enumeration, 1973.

LINKS

Table of n, a(n) for n=1..13.

M. A. Harrison, A census of finite automata, Canad. J. Math., 17, No. 1, 1965, p. 112.

CROSSREFS

Cf. A054732.

Sequence in context: A201428 A141103 A300386 * A302375 A232030 A054950

Adjacent sequences:  A054744 A054745 A054746 * A054748 A054749 A054750

KEYWORD

nonn

AUTHOR

Vladeta Jovovic, Apr 22 2000

STATUS

approved

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Last modified January 23 01:45 EST 2019. Contains 319365 sequences. (Running on oeis4.)