Fibonomial coefficients.

Terms

a(0) =1a(1) =5a(2) =40a(3) =260a(4) =1820a(5) =12376a(6) =85085a(7) =582505a(8) =3994320a(9) =27372840a(10) =187628376a(11) =1285992240a(12) =8814405145a(13) =60414613805a(14) =414088493560