A057134 - OEIS

%I #4 May 10 2013 12:44:31

%S 4,128,716353536,14178431955039404875762272791942922240,

%T 111731732749521642496450208318382051062328048504936611481207677617341443706047938314290688070835642649073892130179773602200265988880358130183392743915520

%N Number of equivalence classes of self-dual 4-valued Post functions of n variables under action of symmetric group S_n.

%C Next term has 614 digits.

%Y Cf. A001531, A057132, A057133, A001321.

%K nonn

%O 1,1

%A _Vladeta Jovovic_, Aug 11 2000