A255430 Natural numbers n, not multiples of 10, such that n and n^2 lack the digit 1 in their decimal expansions.

2, 3, 5, 6, 7, 8, 22, 23, 24, 25, 26, 27, 28, 45, 47, 48, 52, 53, 55, 57, 58, 62, 63, 64, 65, 66, 67, 68, 73, 74, 75, 76, 77, 78, 82, 83, 84, 85, 86, 87, 88, 92, 93, 94, 95, 97, 98, 202, 205, 206, 207, 208, 222, 223, 225, 232, 233, 234, 235, 236, 238, 242, 243, 244, 245, 252, 253, 255

Offset: 1

Author

Zak Seidov, Feb 23 2015

Keywords

• nonn
• base

Comments

No trailing zeros allowed.

Crossrefs

Cf. A000027, A052383, A067251, A255398.