a(n) = (tau(n^5) + 4)/5.

Terms

a(0) =1a(1) =2a(2) =2a(3) =3a(4) =2a(5) =8a(6) =2a(7) =4a(8) =3a(9) =8a(10) =2a(11) =14a(12) =2a(13) =8a(14) =8a(15) =5a(16) =2a(17) =14a(18) =2a(19) =14a(20) =8a(21) =8a(22) =2a(23) =20a(24) =3a(25) =8a(26) =4a(27) =14a(28) =2a(29) =44