Triangle read by rows, T(n,k) = GegenbauerC(m,-n,-2) where m = k if k<n else 2*n-k, for n>=0 and 0<=k<=2n.
A272867
Triangle read by rows, T(n,k) = GegenbauerC(m,-n,-2) where m = k if k<n else 2*n-k, for n>=0 and 0<=k<=2n.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =1a(4) =1a(5) =8a(6) =18a(7) =8a(8) =1a(9) =1a(10) =12a(11) =51a(12) =88a(13) =51a(14) =12a(15) =1a(16) =1a(17) =16a(18) =100a(19) =304a(20) =454a(21) =304a(22) =100a(23) =16a(24) =1a(25) =1a(26) =20a(27) =165a(28) =720a(29) =1770
External references
- oeis: A272867