A039412 - OEIS

%I #11 Jun 30 2021 03:58:08

%S 25,52,125,152,205,215,235,245,250,251,253,254,256,257,258,259,265,

%T 275,285,295,325,352,425,452,502,512,520,521,523,524,526,527,528,529,

%U 532,542,562,572,582,592,625,652,725,752,825,852,925,952,1025,1052

%N Numbers whose base-10 representation has the same nonzero number of 2's and 5's.

%K nonn,base,easy

%O 1,1

%A _Olivier Gérard_