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

Terms

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