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A047660 Number of self-complementary 2-plexes. 2
1, 1, 0, 1, 2, 40, 0, 703760, 131328, 300241541128192, 0, 28170013344558609991874248704, 24595658799308603392, 9502080486519653717758562294813775233459455787008, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..15.

E. M. Palmer, On the number of n-plexes, Discrete Math., 6 (1973), 377-390.

CROSSREFS

Cf. A000171, A051251.

Sequence in context: A212615 A247878 A232086 * A213909 A073418 A275547

Adjacent sequences:  A047657 A047658 A047659 * A047661 A047662 A047663

KEYWORD

nonn,nice

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Vladeta Jovovic

STATUS

approved

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Last modified July 21 00:39 EDT 2019. Contains 325189 sequences. (Running on oeis4.)