This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A001322 M4884 N2094 #18 May 19 2024 12:44:24 %S A001322 12,10206,2148007936,149011627197265625,5157212399256236248406163456, %T A001322 128461788760529439274299006884487791149204, %U A001322 3138550867693340381917894873863110037264541113810027544576 %N A001322 Number of equivalence classes of n-valued Post functions of 2 variables under action of symmetric group S_2. %D A001322 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence). %D A001322 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %D A001322 I. Strazdins, On the number of types of l-adic functions (in Russian), Proc. Riga Polytech. Inst. 10, No. 1 (1963), 167-186. %H A001322 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. %Y A001322 Cf. A003180, A001321. %K A001322 nonn %O A001322 2,1 %A A001322 _N. J. A. Sloane_ %E A001322 More terms from _Vladeta Jovovic_, Aug 09 2000