Numbers n such that n^2 contains no digit less than 5.

Terms

a(0) =3a(1) =24a(2) =26a(3) =76a(4) =83a(5) =87a(6) =236a(7) =264a(8) =313a(9) =314a(10) =316a(11) =766a(12) =816a(13) =824a(14) =834a(15) =836a(16) =883a(17) =887a(18) =937a(19) =2366a(20) =2383a(21) =2387a(22) =2424a(23) =2563a(24) =2626a(25) =2976a(26) =3114a(27) =7613a(28) =7666a(29) =8117