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

Terms

a(0) =1a(1) =4a(2) =5a(3) =6a(4) =8a(5) =9a(6) =10a(7) =12a(8) =12a(9) =13a(10) =15a(11) =15a(12) =16a(13) =16a(14) =17a(15) =19a(16) =18a(17) =20a(18) =18a(19) =23a(20) =25a(21) =21a(22) =22a(23) =24a(24) =24a(25) =28a(26) =29a(27) =27a(28) =29a(29) =31