Number T(n,k) of linear chord diagrams having n chords and maximal chord length k (or k=0 if n=0); triangle T(n,k), n>=0, 0<=k<=n, read by rows.
A293961
Number T(n,k) of linear chord diagrams having n chords and maximal chord length k (or k=0 if n=0); triangle T(n,k), n>=0, 0<=k<=n, read by rows.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =0a(4) =1a(5) =2a(6) =0a(7) =1a(8) =4a(9) =10a(10) =0a(11) =1a(12) =10a(13) =24a(14) =70a(15) =0a(16) =1a(17) =20a(18) =82a(19) =212a(20) =630a(21) =0a(22) =1a(23) =42a(24) =300a(25) =798a(26) =2324a(27) =6930a(28) =0a(29) =1
External references
- oeis: A293961