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A052097
a(n)^2 is a square whose decimal expansion digits occur with an exact frequency of 4.
3
31646191, 33228821, 33333003, 34468078, 34528437, 34597630, 35229568, 36920414, 37605474, 39693346, 41508061, 43076539, 43109691, 43485609, 43529521, 44147309, 44294056, 45455649, 45460011, 45460110, 45961010
OFFSET
1,1
COMMENTS
Last term is 99999444387327303945. - Giovanni Resta, Mar 21 2013
EXAMPLE
33228821 is in the sequence because 33228821^2 = 1104154545050041, in which each digit is repeated 4 times.
CROSSREFS
KEYWORD
nonn,base,fini
AUTHOR
Patrick De Geest, Jan 15 2000
STATUS
approved