OFFSET
1,2
PROG
(GAP) Concatenation([1], List([2..10], n->Sum( Filtered( ConjugacyClassesSubgroups( SL(2, Integers mod n)), x->IsAbelian( Representative(x))), Size)));
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Andrew Howroyd, Jul 06 2018
STATUS
approved