%I A001331 M5395 N2344
%S A001331 1,130,1270932917454,14178431955039102644307345678938144832,
%T A001331 19591572513704791799478942287037427963644425946432640042160816616766795992851260047500,
%U A001331 1672390093955882094725125078968449171301017629802018367164057251590306327375884442617701277598562886114475651\
               122751129803783336384871488080121922759032559677888042592
%N A001331 Number of n-element algebras with 1 ternary operation.
%D A001331 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A001331 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A001331 M. A. Harrison, The number of isomorphism types of finite algebras, Proc. 
               Amer. Math. Soc., 17 (1966), 731-737.
%Y A001331 Cf. A091510.
%Y A001331 Sequence in context: A167702 A064687 A084641 this_sequence A071234 A145096 
               A050671
%Y A001331 Adjacent sequences: A001328 A001329 A001330 this_sequence A001332 A001333 
               A001334
%K A001331 nonn,nice
%O A001331 1,2
%A A001331 N. J. A. Sloane (njas(AT)research.att.com).
%E A001331 More terms from Pab Ter (pabrlos(AT)yahoo.com), May 06 2004