Cardinality of the Weyl alternation set corresponding to the zero-weight in the adjoint representation of the Lie algebra so(2n+1).

A232163

Cardinality of the Weyl alternation set corresponding to the zero-weight in the adjoint representation of the Lie algebra so(2n+1).

Terms

    a(0) =0a(1) =1a(2) =2a(3) =5a(4) =10a(5) =22a(6) =49a(7) =106a(8) =231a(9) =506a(10) =1104a(11) =2409a(12) =5262a(13) =11489a(14) =25082a(15) =54766a(16) =119577a(17) =261078a(18) =570035a(19) =1244610a(20) =2717456a(21) =5933249a(22) =12954570a(23) =28284797a(24) =61756570a(25) =134838326a(26) =294403857a(27) =642796690a(28) =1403472095a(29) =3064318682

External references