A269890 Number of conjugacy classes of subgroups of the hyperoctahedral group.

2, 8, 33, 193, 953, 7440, 55200, 627187, 7510549

Offset

1,1

Links

Table of n, a(n) for n=1..9.

Prog

(GAP) Length(ConjugacyClassesSubgroups(CoxeterGroup( "B", n )));
(Magma) [#Subgroups(CoxeterGroup("B" cat IntegerToString(n))) : n in [1..9]];  // Robin Visser, Aug 09 2023

Crossrefs

Cf. A000638.

Sequence in context: A030977 A030821 A236382 * A005040 A191551 A263627

Adjacent sequences: A269887 A269888 A269889 * A269891 A269892 A269893

Keyword

nonn,hard,more

Author

Martin Rubey, Mar 07 2016

Extensions

a(6)-a(9) from Robin Visser, Aug 09 2023

Status

approved