The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A353181 Numbers in which more than half of the digits are the same. 3

%I #25 Jun 25 2022 22:10:47

%S 1,2,3,4,5,6,7,8,9,11,22,33,44,55,66,77,88,99,100,101,110,111,112,113,

%T 114,115,116,117,118,119,121,122,131,133,141,144,151,155,161,166,171,

%U 177,181,188,191,199,200,202,211,212,220,221,222,223,224,225,226,227,228,229,232

%N Numbers in which more than half of the digits are the same.

%C Same as A044959 for terms <= 1000, and then differing at A044959(272) = 1001 which is not a term here (the next instead a(272) = 1011).

%H Zhining Yang, <a href="/A353181/b353181.txt">Table of n, a(n) for n = 1..30000</a>

%e 1211 is a term: it has 4 digits, 3 of which are 1's, and 3/4 > 1/2.

%e 1212 is not a term: it has 4 digits, no one of which appears more than twice.

%t Select[Range[300], Max[DigitCount[#]] > IntegerLength[#]/2 &]

%o (Python)

%o def ok(k):

%o t=str(k)

%o return(max(t.count(str(i)) for i in range(10))>(len(t)//2))

%o print([n for n in range(1, 201) if ok(n)])

%Y Cf. A109303, A044959.

%K nonn,base,easy

%O 1,2

%A _Zhining Yang_, Apr 29 2022

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 31 21:04 EDT 2024. Contains 373003 sequences. (Running on oeis4.)