Sum of exponents in prime-power factorization of C(5n,n-3).

Terms

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