A052097 - OEIS

%I #13 Aug 11 2024 14:41:32

%S 31646191,33228821,33333003,34468078,34528437,34597630,35229568,

%T 36920414,37605474,39693346,41508061,43076539,43109691,43485609,

%U 43529521,44147309,44294056,45455649,45460011,45460110,45961010

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

%C Last term is 99999444387327303945. - _Giovanni Resta_, Mar 21 2013

%H P. De Geest, <a href="https://www.worldofnumbers.com/samedigits.htm">Numbers whose digits occur with same frequency</a>

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

%Y Cf. A052098, A052095, A052096, A052049.

%K nonn,base,fini

%O 1,1

%A _Patrick De Geest_, Jan 15 2000