Triangle read by rows: T(n, k, m) = binomial(n, k) - m*binomial(n, k)*binomial(n+1, k)/(k+1) + m*A008292(n+1, k+1) with m = 3.

A178346

Triangle read by rows: T(n, k, m) = binomial(n, k) - m*binomial(n, k)*binomial(n+1, k)/(k+1) + m*A008292(n+1, k+1) with m = 3.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =1a(6) =1a(7) =18a(8) =18a(9) =1a(10) =1a(11) =52a(12) =144a(13) =52a(14) =1a(15) =1a(16) =131a(17) =766a(18) =766a(19) =131a(20) =1a(21) =1a(22) =303a(23) =3273a(24) =6743a(25) =3273a(26) =303a(27) =1a(28) =1a(29) =664

External references