Triangle, read by rows, T(n,k,m) = (m*(n-k)+1)*binomial(n-1, k-1) + (m*k+1)* binomial(n-1, k) - m*k*(n-k)*binomial(n-2, k-1), with m = 3.

A157174

Triangle, read by rows, T(n,k,m) = (m*(n-k)+1)*binomial(n-1, k-1) + (m*k+1)* binomial(n-1, k) - m*k*(n-k)*binomial(n-2, k-1), with m = 3.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =1a(6) =1a(7) =9a(8) =9a(9) =1a(10) =1a(11) =13a(12) =18a(13) =13a(14) =1a(15) =1a(16) =17a(17) =28a(18) =28a(19) =17a(20) =1a(21) =1a(22) =21a(23) =39a(24) =38a(25) =39a(26) =21a(27) =1a(28) =1a(29) =25

External references