Numbers k such that A248891(k) = 3.

Terms

a(0) =9a(1) =12a(2) =15a(3) =17a(4) =18a(5) =22a(6) =27a(7) =32a(8) =34a(9) =39a(10) =69a(11) =70a(12) =71a(13) =79a(14) =128a(15) =143a(16) =172a(17) =226a(18) =241a(19) =242a(20) =248a(21) =269a(22) =322a(23) =325a(24) =403a(25) =405a(26) =406a(27) =420a(28) =745a(29) =2057