A181319 Numbers n with property that there is a different number m such that the lunar squares n*n and m*m are the same.

11011, 11012, 11013, 11014, 11015, 11016, 11017, 11018, 11019, 11021, 11022, 11023, 11024, 11025, 11026, 11027, 11028, 11029, 11031, 11032, 11033, 11034, 11035, 11036, 11037, 11038, 11039, 11041, 11042, 11043, 11044, 11045, 11046, 11047, 11048, 11049, 11051, 11052, 11053, 11054, 11055, 11056, 11057, 11058

Offset: 1

Author

David Applegate and N. J. A. Sloane, Jan 26 2011

Keywords

• nonn
• base

Examples

			11011*11011 = 11111*11111 = 111111111, so 11011 and 11111 are members.
		

Links

• David Applegate and N. J. A. Sloane, Table of n, a(n) for n = 1..21894
• D. Applegate, M. LeBrun and N. J. A. Sloane, Dismal Arithmetic [Note: we have now changed the name from "dismal arithmetic" to "lunar arithmetic" - the old name was too depressing]

Crossrefs

Cf. A087019, A180513.