A043500 Numbers having four 2's in base 10.

2222, 12222, 20222, 21222, 22022, 22122, 22202, 22212, 22220, 22221, 22223, 22224, 22225, 22226, 22227, 22228, 22229, 22232, 22242, 22252, 22262, 22272, 22282, 22292, 22322, 22422, 22522, 22622, 22722, 22822, 22922

Offset

1,1

Links

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

Mathematica

Select[Range[2222, 30000], DigitCount[#, 10, 2]==4&] (* Harvey P. Dale, Oct 05 2012 *)

Crossrefs

Cf. A043496.

Sequence in context: A091189 A046443 A257826 * A118116 A053395 A178919

Adjacent sequences: A043497 A043498 A043499 * A043501 A043502 A043503

Keyword

nonn,base

Author

Clark Kimberling

Status

approved