Numbers k such that k^2 contains only digits {1,2,9}.
A053888
Numbers k such that k^2 contains only digits {1,2,9}.
Terms
- a(0) =1a(1) =3a(2) =11a(3) =173a(4) =3161a(5) =34827a(6) =43923a(7) =44623a(8) =54123a(9) =1108661a(10) =9603239a(11) =14832161a(12) =9960980373
External references
- oeis: A053888