Triangular array T read by rows: T(n,k) = t(n,2k+1) for 0 <= k <= n, T(n,n)=1, t given by A027926, n >= 0.
A027948
Triangular array T read by rows: T(n,k) = t(n,2k+1) for 0 <= k <= n, T(n,n)=1, t given by A027926, n >= 0.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =1a(6) =1a(7) =3a(8) =3a(9) =1a(10) =1a(11) =3a(12) =7a(13) =4a(14) =1a(15) =1a(16) =3a(17) =8a(18) =14a(19) =5a(20) =1a(21) =1a(22) =3a(23) =8a(24) =20a(25) =25a(26) =6a(27) =1a(28) =1a(29) =3
External references
- oeis: A027948