Coefficients of (x^(1/5)*d/dx)^n for positive integer n.

Terms

a(0) =1a(1) =1a(2) =5a(3) =-3a(4) =15a(5) =25a(6) =21a(7) =-45a(8) =150a(9) =125a(10) =-231a(11) =375a(12) =-375a(13) =1250a(14) =625a(15) =693a(16) =-981a(17) =750a(18) =-375a(19) =1875a(20) =625a(21) =-13167a(22) =17199a(23) =-11655a(24) =5250a(25) =13125a(26) =3125a(27) =302841a(28) =-375417a(29) =237510