Braid numbers B((n,n)->(n,n)).

Terms

a(0) =1a(1) =2a(2) =16a(3) =128a(4) =1156a(5) =10952a(6) =107584a(7) =1083392a(8) =11115556a(9) =115702472a(10) =1218289216a(11) =12948910592a(12) =138708574096