A052095 a(n)^2 is a square whose decimal expansion digits occur with an exact frequency of 3.

10011, 10110, 10401, 11001, 11010, 14499, 20022, 20220, 22002, 22020, 28998, 31086, 333303, 344514, 354318, 354996, 360096, 367854, 379665, 414189, 442263, 458499, 458610, 460719, 462765, 467997, 470682, 484173, 492489, 518484, 528297

Offset

1,1

Comments

For case frequency 2 the first terms correspond to those of sequence A052049.

Last term is 999944387118711. - Giovanni Resta, Mar 21 2013

Links

Table of n, a(n) for n=1..31.

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

Mathematica

Select[Range[53*10^4], Union[Tally[IntegerDigits[#^2]][[All, 2]]]=={3}&] (* Harvey P. Dale, May 05 2018 *)

Crossrefs

Cf. A052096, A052097, A052098, A052049.

Sequence in context: A023335 A096211 A190149 * A033533 A146505 A202653

Adjacent sequences: A052092 A052093 A052094 * A052096 A052097 A052098

Keyword

nonn,base,fini,changed

Author

Patrick De Geest, Jan 15 2000

Status

approved