The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A269592 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A269592

Digits of one of the two 5-adic integers sqrt(-4). Here the ones related to A269590.
(history; published version)

#16 by Bruno Berselli at Mon Jul 31 12:56:58 EDT 2017

STATUS

reviewed

approved

#15 by Joerg Arndt at Mon Jul 31 11:22:02 EDT 2017

STATUS

proposed

reviewed

#14 by Seiichi Manyama at Mon Jul 31 10:48:48 EDT 2017

STATUS

editing

proposed

#13 by Seiichi Manyama at Mon Jul 31 10:48:40 EDT 2017

LINKS

Seiichi Manyama, <a href="/A269592/b269592.txt">Table of n, a(n) for n = 0..10000</a>

STATUS

approved

editing

#12 by Charles R Greathouse IV at Thu Mar 31 13:00:33 EDT 2016

STATUS

proposed

approved

#11 by Michel Marcus at Thu Mar 31 08:17:01 EDT 2016

STATUS

editing

proposed

#10 by Michel Marcus at Thu Mar 31 08:16:32 EDT 2016

FORMULA

a(n) = 4 - A269591(n) if n > 0 and a(0) = 5 - A269591(0) = 5-4 = 1. - Michel Marcus, Mar 31 2016

STATUS

proposed

editing

Discussion

Thu Mar 31

08:16

Michel Marcus: Sorry, I did not see.

08:17

Michel Marcus: Let's see.

#9 by Michel Marcus at Sat Mar 05 01:26:01 EST 2016

STATUS

editing

proposed

Discussion

Sat Mar 05

04:04

Wolfdieter Lang: Michel, I did not want to pervent  you from adding your formula. Please add it, someone else may like it too.

#8 by Michel Marcus at Sat Mar 05 01:25:52 EST 2016

PROG

(PARI) a(n) = (n==0) + 4 - truncate(-sqrt(-4+O(5^(n+1))))\5^n; \\ Michel Marcus, Mar 04 2016

STATUS

proposed

editing

#7 by Michel Marcus at Fri Mar 04 02:31:41 EST 2016

STATUS

editing

proposed

Discussion

Fri Mar 04

02:36

Michel Marcus: pari ok ?

05:03

Michel Marcus: a(n) = 4 - A269591(n)  if n > 0 and a(0) = 5 - A269591(0); right ?

06:29

Wolfdieter Lang: See my PARI comment elsewhere. I suppose its o.k. You may add you formula. I don't like it much. The important equation is  A269590(n) = 5^n - A268922(n),  n >= 1. Here we have the difference of  the two scaled first differences of these two approximation sequences.

12:01

Michel Marcus: if you don't like it, then I won't add it; no problem.