Self-convolution of a(n)/4^n gives fibonorials (A003266).

A277363

Self-convolution of a(n)/4^n gives fibonorials (A003266).

Terms

    a(0) =1a(1) =2a(2) =6a(3) =52a(4) =646a(5) =13756a(6) =458780a(7) =24525352a(8) =2094232006a(9) =287618113900

External references