Triangle read by rows: T(n,m)=4^(n-1)*C(n,m)*C(3*n/2-2,n-1)/n, for 0 <= m <= n, with T(0,0)=1.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =2a(6) =10a(7) =30a(8) =30a(9) =10a(10) =64a(11) =256a(12) =384a(13) =256a(14) =64a(15) =462a(16) =2310a(17) =4620a(18) =4620a(19) =2310a(20) =462a(21) =3584a(22) =21504a(23) =53760a(24) =71680a(25) =53760a(26) =21504a(27) =3584a(28) =29172a(29) =204204