OFFSET
1,1
PROG
(GAP) Length(ConjugacyClassesSubgroups(CoxeterGroup( "B", n )));
(Magma) [#Subgroups(CoxeterGroup("B" cat IntegerToString(n))) : n in [1..9]]; // Robin Visser, Aug 09 2023
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Martin Rubey, Mar 07 2016
EXTENSIONS
a(6)-a(9) from Robin Visser, Aug 09 2023
STATUS
approved