Cardinality of the Weyl alternation set corresponding to the zero-weight in the representation of the Lie algebra sp(2n) whose highest weight is the second fundamental weight.
A243094
Cardinality of the Weyl alternation set corresponding to the zero-weight in the representation of the Lie algebra sp(2n) whose highest weight is the second fundamental weight.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =8a(4) =19a(5) =44a(6) =92a(7) =201a(8) =444a(9) =965a(10) =2104a(11) =4602a(12) =10045a(13) =21924a(14) =47879a(15) =104540a(16) =228236a(17) =498337a(18) =1088072a(19) =2375657a(20) =5186976a(21) =11325186a(22) =24727205a(23) =53988976a(24) =117878715a(25) =257374492a(26) =561947340a(27) =1226946953a(28) =2678896484a(29) =5849059949
External references
- oeis: A243094