Triangle T(n,k) (n >= 1, 0 <= k <= floor((n-1)/2)) read by rows, where T(n,k) = (k+1)T(n-1,k) + (2n-4k)T(n-1,k-1).
A101280
Triangle T(n,k) (n >= 1, 0 <= k <= floor((n-1)/2)) read by rows, where T(n,k) = (k+1)T(n-1,k) + (2n-4k)T(n-1,k-1).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =1a(5) =8a(6) =1a(7) =22a(8) =16a(9) =1a(10) =52a(11) =136a(12) =1a(13) =114a(14) =720a(15) =272a(16) =1a(17) =240a(18) =3072a(19) =3968a(20) =1a(21) =494a(22) =11616a(23) =34304a(24) =7936a(25) =1a(26) =1004a(27) =40776a(28) =230144a(29) =176896
External references
- oeis: A101280