The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A290374 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A290374

10-adic integer x = ...7057 satisfying x^5 = x.
(history; published version)

#34 by Susanna Cuyler at Thu Aug 01 18:27:42 EDT 2019

STATUS

proposed

approved

#33 by Seiichi Manyama at Thu Aug 01 13:22:24 EDT 2019

STATUS

editing

proposed

#32 by Seiichi Manyama at Thu Aug 01 13:21:35 EDT 2019

EXAMPLE

From Seiichi Manyama, Aug 01 2019: (Start)

2^(5^0) + 5^(2^0) == 7 mod 10,

2^(5^1) + 5^(2^1) == 57 mod 10^2,

2^(5^2) + 5^(2^2) == 57 mod 10^3,

2^(5^3) + 5^(2^3) == 7057 mod 10^4. (End)

STATUS

approved

editing

#31 by Joerg Arndt at Mon Jul 31 07:46:22 EDT 2017

STATUS

proposed

approved

#30 by Seiichi Manyama at Mon Jul 31 07:08:34 EDT 2017

STATUS

editing

proposed

#29 by Seiichi Manyama at Mon Jul 31 06:08:45 EDT 2017

CROSSREFS

Cf. x^5 = x: A120817, (...6432), A120818, (...3568), A290372, (...5807), A290373, (...2943), this sequence (...7057), A290375 (...4193).

#28 by Seiichi Manyama at Mon Jul 31 06:07:05 EDT 2017

PROG

m str = (P(n) + Q(5, n)).to_s.reverse

m.to_s.reverse.split('').map(&:to_i)[0..n]

(0..n).map{|i| str[i].to_i}

STATUS

approved

editing

#27 by N. J. A. Sloane at Sat Jul 29 21:41:29 EDT 2017

STATUS

proposed

approved

#26 by Seiichi Manyama at Sat Jul 29 21:38:40 EDT 2017

STATUS

editing

proposed

#25 by Seiichi Manyama at Sat Jul 29 21:38:35 EDT 2017

LINKS

Seiichi Manyama, <a href="/A290374/b290374.txt">Table of n, a(n) for n = 0..9999</a>

STATUS

approved

editing