%I M5395 N2344 #23 May 29 2019 10:07:53
%S 1,130,1270932917454,14178431955039102644307345678938144832,
%T 19591572513704791799478942287037427963644425946432640042160816616766795992851260047500,
%U 1672390093955882094725125078968449171301017629802018367164057251590306327375884442617701277598562886114475651122751129803783336384871488080121922759032559677888042592
%N Number of n-element algebras with 1 ternary operation.
%D N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H M. A. Harrison, <a href="https://doi.org/10.1090/S0002-9939-1966-0200219-9">The number of isomorphism types of finite algebras</a>, Proc. Amer. Math. Soc., 17 (1966), 731-737.
%Y Cf. A091510.
%K nonn,nice
%O 1,2
%A _N. J. A. Sloane_.
%E More terms from Pab Ter (pabrlos(AT)yahoo.com), May 06 2004