Triangle of coefficients in expansion of sinh^2(n*x) in powers of sinh(x).

Terms

a(0) =1a(1) =4a(2) =4a(3) =16a(4) =24a(5) =9a(6) =64a(7) =128a(8) =80a(9) =16a(10) =256a(11) =640a(12) =560a(13) =200a(14) =25a(15) =1024a(16) =3072a(17) =3456a(18) =1792a(19) =420a(20) =36a(21) =4096a(22) =14336a(23) =19712a(24) =13440a(25) =4704a(26) =784a(27) =49a(28) =16384a(29) =65536