OFFSET
1,3
LINKS
Daniel Starodubtsev, Table of n, a(n) for n = 1..10000
MATHEMATICA
Select[Range[0, 150], DigitCount[#, 7, 3]==DigitCount[#, 7, 6]&] (* Harvey P. Dale, Jul 11 2011 *)
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
STATUS
approved