103817412608domain: NAppears in sequences6-fold convolution of A000302 (powers of 4); expansion of 1/(1-4*x)^6.at n=12A045543a(n) = (1+(-1)^n)/2*4^n*(C((3*n)/2-1,n))+(1-(-1)^n)/2*((C((3*n-1)/2,n))*(C(3*n-1,(3*n-1)/2)))/(C(n-1,(n-1)/2)).at n=12A348618