The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A319726 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing entries 1-10 | older changes

A319726

Write n in 9-ary, sort digits into decreasing order.
(history; published version)

#18 by Charles R Greathouse IV at Wed Aug 07 10:35:25 EDT 2024

STATUS

editing

approved

#17 by Charles R Greathouse IV at Wed Aug 07 10:35:23 EDT 2024

FORMULA

n <= a(n) < 9n. - Charles R Greathouse IV, Aug 07 2024

KEYWORD

nonn,base,look,easy

STATUS

approved

editing

#16 by Harvey P. Dale at Wed Oct 26 18:50:54 EDT 2022

STATUS

editing

approved

#15 by Harvey P. Dale at Wed Oct 26 18:50:51 EDT 2022

MATHEMATICA

Table[FromDigits[Reverse[Sort[IntegerDigits[n, 9]]], 9], {n, 0, 70}] (* Harvey P. Dale, Oct 26 2022 *)

STATUS

approved

editing

#14 by Bruno Berselli at Thu Sep 27 02:36:10 EDT 2018

STATUS

reviewed

approved

#13 by Michel Marcus at Thu Sep 27 02:07:24 EDT 2018

STATUS

proposed

reviewed

#12 by Seiichi Manyama at Wed Sep 26 18:01:22 EDT 2018

STATUS

editing

proposed

#11 by Seiichi Manyama at Wed Sep 26 18:01:17 EDT 2018

KEYWORD

nonn,base,new,look

#10 by Seiichi Manyama at Wed Sep 26 18:00:09 EDT 2018

LINKS

Seiichi Manyama, <a href="/A319726/b319726.txt">Table of n, a(n) for n = 0..6560</a>

STATUS

approved

editing

Discussion

Wed Sep 26

18:00

Seiichi Manyama: 6560=9^4-1.

#9 by Susanna Cuyler at Wed Sep 26 16:27:29 EDT 2018

STATUS

proposed

approved