A043499 Numbers having three 2's in base 10.

222, 1222, 2022, 2122, 2202, 2212, 2220, 2221, 2223, 2224, 2225, 2226, 2227, 2228, 2229, 2232, 2242, 2252, 2262, 2272, 2282, 2292, 2322, 2422, 2522, 2622, 2722, 2822, 2922, 3222, 4222, 5222, 6222, 7222, 8222, 9222, 10222, 11222, 12022, 12122, 12202, 12212

Offset: 1

Author

Clark Kimberling

Keywords

• nonn
• base

Links

• Daniel Starodubtsev, Table of n, a(n) for n = 1..10000

Crossrefs

Subsequence of A011532.

Programs

Mathematica

Select[Range[13000],DigitCount[#,10,2]==3&] (* Harvey P. Dale, Aug 23 2021 *)