Numbers whose base-5 representation has 2 more 0's than 4's.

Terms

a(0) =25a(1) =50a(2) =75a(3) =126a(4) =127a(5) =128a(6) =130a(7) =135a(8) =140a(9) =150a(10) =175a(11) =200a(12) =251a(13) =252a(14) =253a(15) =255a(16) =260a(17) =265a(18) =275a(19) =300a(20) =325a(21) =376a(22) =377a(23) =378a(24) =380a(25) =385a(26) =390a(27) =400a(28) =425a(29) =450