A052097 a(n)^2 is a square whose decimal expansion digits occur with an exact frequency of 4.

31646191, 33228821, 33333003, 34468078, 34528437, 34597630, 35229568, 36920414, 37605474, 39693346, 41508061, 43076539, 43109691, 43485609, 43529521, 44147309, 44294056, 45455649, 45460011, 45460110, 45961010

Offset: 1

Author

Patrick De Geest, Jan 15 2000

Keywords

• nonn
• base
• fini

Comments

Last term is 99999444387327303945. - Giovanni Resta, Mar 21 2013

Examples

			33228821 is in the sequence because 33228821^2 = 1104154545050041, in which each digit is repeated 4 times.
		

Links

• P. De Geest, Numbers whose digits occur with same frequency

Crossrefs

Cf. A052098, A052095, A052096, A052049.