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Number of equivalence classes of 4-valued Post functions of n variables under action of symmetric group S_n.
1

%I #8 May 19 2024 12:46:31

%S 256,2148007936,56713727820157015040139002378207625216,

%T 558658663747608212482251041591910255311640242524683057405682390247387063055565341158714756695500587176090293978181121308657577535237991794589785900711936

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

%H M. A. Harrison and R. G. High, <a href="https://doi.org/10.1016/S0021-9800(68)80008-0">On the cycle index of a product of permutation groups</a>, J. Combin. Theory, 4 (1968), 277-299. See p. 295.

%Y Cf. A000616, A001321, A001322, A001323, A001324.

%K nonn

%O 1,1

%A _Vladeta Jovovic_, Aug 09 2000