login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A043500 Numbers having four 2's in base 10. 2
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MATHEMATICA

Select[Range[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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 23 22:20 EDT 2021. Contains 346265 sequences. (Running on oeis4.)