Sum of exponents in prime-power factorization of C(5n,n-2).

Terms

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