login
A057992
Number of commutative quasigroups of order n.
6
1, 1, 1, 3, 7, 11, 491, 6381, 10940111, 1225586965, 130025302505741, 252282619993126717, 2209617218725712597768722, 98758655816833782283724345637
OFFSET
0,4
KEYWORD
nonn,more
AUTHOR
Christian G. Bower, Nov 01 2000
EXTENSIONS
Added a(7) = 6381, W. Edwin Clark, Jan 04 2011
a(8)-a(13) from Ian Wanless, Dec 08 2021
STATUS
approved