Odd numbers k such that A098548(k) is not a multiple of 3.

Terms

a(0) =1a(1) =493a(2) =495a(3) =497a(4) =499a(5) =1085a(6) =1087a(7) =1685a(8) =1687a(9) =2283a(10) =2285a(11) =2287a(12) =2873a(13) =2875a(14) =3471a(15) =3473a(16) =4673a(17) =4675a(18) =5271a(19) =5273a(20) =5871a(21) =5873a(22) =6469a(23) =6471a(24) =7069a(25) =7071a(26) =7669a(27) =7671a(28) =8267a(29) =8269