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!)
A045022 Numbers n with property that in base 4 representation the numbers of 0's and 1's are 1 and 4, respectively. 1
277, 325, 337, 340, 1110, 1111, 1113, 1117, 1125, 1141, 1173, 1237, 1302, 1303, 1305, 1309, 1317, 1333, 1350, 1351, 1353, 1357, 1362, 1363, 1368, 1372, 1377, 1380, 1393, 1396, 1413, 1425, 1428, 1477, 1489, 1492, 1557 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..5000

MATHEMATICA

Select[Range[10000], DigitCount[#, 4, 0] == 1 && DigitCount[#, 4, 1] == 4 &] (* Vincenzo Librandi, Sep 21 2016 *)

CROSSREFS

Sequence in context: A297755 A166192 A186466 * A108253 A108255 A152715

Adjacent sequences:  A045019 A045020 A045021 * A045023 A045024 A045025

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 12:19 EDT 2021. Contains 346259 sequences. (Running on oeis4.)