Number of Weyl group elements, not containing s_1 or s_2, which contribute nonzero terms to Kostant's weight multiplicity formula when computing the multiplicity of the zero-weight in the adjoint representation for the Lie algebra of type D and rank n.
A234576
Number of Weyl group elements, not containing s_1 or s_2, which contribute nonzero terms to Kostant's weight multiplicity formula when computing the multiplicity of the zero-weight in the adjoint representation for the Lie algebra of type D and rank n.
Terms
- a(0) =4a(1) =7a(2) =14a(3) =34a(4) =73a(5) =156a(6) =345a(7) =754a(8) =1640a(9) =3585a(10) =7832a(11) =17091a(12) =37318a(13) =81490a(14) =177913a(15) =388448a(16) =848149a(17) =1851826a(18) =4043232a(19) =8827953a(20) =19274812a(21) =42084287a(22) =91886190a(23) =200622866a(24) =438036729a(25) =956402452a(26) =2088193969a(27) =4559329474a(28) =9954767528a(29) =21735081361
External references
- oeis: A234576