Triangle defined by T(n,k) = T(n-1,k-1) + Sum_{j=k..n-2} T(n-1,j)*2^j*T(j,k-1) for n>k>0 with T(n,n)=T(n,0)=1, read by rows.

A152795

Triangle defined by T(n,k) = T(n-1,k-1) + Sum_{j=k..n-2} T(n-1,j)*2^j*T(j,k-1) for n>k>0 with T(n,n)=T(n,0)=1, read by rows.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =3a(8) =1a(9) =1a(10) =1a(11) =11a(12) =7a(13) =1a(14) =1a(15) =1a(16) =59a(17) =63a(18) =15a(19) =1a(20) =1a(21) =1a(22) =507a(23) =847a(24) =295a(25) =31a(26) =1a(27) =1a(28) =1a(29) =7291

External references