Cayley's triangle of V numbers; triangle V(n,k), n >= 4, n <= k <= 2*n-4, read by rows.

Terms

a(0) =1a(1) =2a(2) =4a(3) =3a(4) =14a(5) =14a(6) =4a(7) =32a(8) =72a(9) =48a(10) =5a(11) =60a(12) =225a(13) =330a(14) =165a(15) =6a(16) =100a(17) =550a(18) =1320a(19) =1430a(20) =572a(21) =7a(22) =154a(23) =1155a(24) =4004a(25) =7007a(26) =6006a(27) =2002a(28) =8a(29) =224