%I A047660
%S A047660 1,1,0,1,2,40,0,703760,131328,300241541128192,0,
%T A047660 28170013344558609991874248704,24595658799308603392,
%U A047660 9502080486519653717758562294813775233459455787008,0
%N A047660 Number of self-complementary 2-plexes.
%D A047660 E. M. Palmer, On the number of n-plexes, Discrete Math., 6 (1973), 377-390.
%Y A047660 Cf. A000171, A051251.
%Y A047660 Sequence in context: A080920 A086338 A042683 this_sequence A073418 A012477 
               A003760
%Y A047660 Adjacent sequences: A047657 A047658 A047659 this_sequence A047661 A047662 
               A047663
%K A047660 nonn,nice
%O A047660 1,5
%A A047660 N. J. A. Sloane (njas(AT)research.att.com).
%E A047660 More terms from Vladeta Jovovic (vladeta(AT)eunet.rs).