Numbers k such that A335660(k) = 2.

Terms

a(0) =9a(1) =13a(2) =14a(3) =15a(4) =19a(5) =20a(6) =21a(7) =44a(8) =45a(9) =74a(10) =75a(11) =109a(12) =110a(13) =111a(14) =200a(15) =201a(16) =284a(17) =285a(18) =620a(19) =621a(20) =830a(21) =831a(22) =1304a(23) =1305a(24) =1490a(25) =1491a(26) =1879a(27) =1880a(28) =1881a(29) =2090