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!)
A256084 Non-palindromic balanced numbers in base 4. 1
76, 114, 141, 179, 206, 264, 280, 296, 312, 332, 348, 364, 380, 386, 402, 418, 434, 454, 470, 486, 502, 521, 537, 553, 569, 589, 605, 621, 637, 643, 659, 675, 691, 711, 727, 743, 759, 778, 794, 810, 826, 846, 862, 878, 894, 1060, 1096, 1140, 1176, 1221, 1256, 1320, 1329, 1356, 1400, 1410, 1436, 1481, 1490, 1516, 1554, 1580 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Here a number is called balanced if the sum of digits weighted by their arithmetic distance from the "center" is zero.
This is the base-4 variant of the decimal version A256075 invented by Eric Angelini. See there, and the base-2 version A256082, for further information and examples.
LINKS
PROG
(PARI) is(n, b=4, d=digits(n, b), o=(#d+1)/2)=!(vector(#d, i, i-o)*d~)&&d!=Vecrev(d)
CROSSREFS
Sequence in context: A026046 A330191 A363352 * A039486 A092890 A261705
KEYWORD
nonn,base
AUTHOR
M. F. Hasler, Mar 14 2015
STATUS
approved

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 February 27 16:21 EST 2024. Contains 370378 sequences. (Running on oeis4.)