Numbers k such that sopfr(k) = sopfr(k - sopfr(k)).

Terms

a(0) =55a(1) =72a(2) =84a(3) =119a(4) =143a(5) =256a(6) =2106a(7) =2211a(8) =2279a(9) =3024a(10) =3150a(11) =3551a(12) =4284a(13) =6360a(14) =6500a(15) =9350a(16) =10200a(17) =10285a(18) =10919a(19) =13560a(20) =14279a(21) =14351a(22) =15606a(23) =16463a(24) =17063a(25) =23595a(26) =25011a(27) =27208a(28) =28208a(29) =28600