Numbers n such that the decimal expansions of both n and n^2 have 0 as smallest digit and 7 as largest digit.
A256634
Numbers n such that the decimal expansions of both n and n^2 have 0 as smallest digit and 7 as largest digit.
Terms
- a(0) =740a(1) =760a(2) =1071a(3) =1740a(4) =2074a(5) =2705a(6) =2710a(7) =2740a(8) =2750a(9) =2760a(10) =3705a(11) =3710a(12) =3760a(13) =4071a(14) =4705a(15) =4740a(16) =4760a(17) =5071a(18) =5705a(19) =5760a(20) =6740a(21) =7074a(22) =7240a(23) =7260a(24) =7400a(25) =7550a(26) =7560a(27) =7600a(28) =7601a(29) =7760
External references
- oeis: A256634