# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a057771 Showing 1-1 of 1 %I A057771 #32 Feb 02 2020 21:30:04 %S A057771 0,1,1,1,2,6,109,23746,106228849,9365022303540,20890436195945769617, %T A057771 1478157455158044452849321016 %N A057771 Number of loops (quasigroups with an identity element) of order n. %H A057771 Brendan D. McKay, A. Meynert and W. Myrvold, Small Latin Squares, Quasigroups and Loops, J. Combin. Designs 15 (2007), no. 2, 98-119. %H A057771 A. Hulpke, Petteri Kaski and Patric R. J. Ã–stergÃ¥rd, The number of Latin squares of order 11, Math. Comp. 80 (2011) 1197-1219. %H A057771 Index entries for sequences related to quasigroups %Y A057771 Cf. A000315, A057991, A057992, A057993, A057994, A057996, A057997, A057998, A089925. %K A057771 nonn,more,nice %O A057771 0,5 %A A057771 _Christian G. Bower_, Nov 01 2000 %E A057771 a(8) from Juergen Buntrock (jubu(AT)jubu.com), Nov 03 2003. %E A057771 a(9)-a(10) (from the McKay-Meynert-Myrvold article) from _Richard Bean_, Feb 17 2004 %E A057771 a(11) from Petteri Kaski (petteri.kaski(AT)cs.helsinki.fi), Sep 18 2009 %E A057771 a(0) prepended by _Jianing Song_, Oct 26 2019 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE