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Number of equivalence classes of 4-valued Post functions of n variables under action of semi-direct product of symmetric group S_n and complementing group C(n,4).
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%I #8 May 19 2024 12:46:12

%S 70,134355076,886151997189981695113820646176823296,

%T 2182260405264094580008793131218399434811094697362043192997204611423155311899661247043911272024597983456098936160983083394199640518703547613585747214336

%N Number of equivalence classes of 4-valued Post functions of n variables under action of semi-direct product of symmetric group S_n and complementing group C(n,4).

%D I. Strazdins, On the number of types of l-adic functions (in Russian), Proc. Riga Polytech. Inst. 10, No. 1 (1963), 167-186.

%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. 296.

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

%K nonn

%O 1,1

%A _Vladeta Jovovic_, Aug 09 2000