The On-Line Encyclopedia of Integer Sequences® (OEIS®)

Revision History for A093166 (Underlined text is an addition; strikethrough text is a ~~deletion~~.)
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A093166

Primes of the form 80*R_k + 3, where R_k is the repunit (A002275) of length k.
(history; published version)

#21 by Hugo Pfoertner at Thu Jul 08 05:53:25 EDT 2021

STATUS

reviewed

approved

#20 by Michel Marcus at Thu Jul 08 05:42:34 EDT 2021

STATUS

proposed

reviewed

#19 by Jon E. Schoenfield at Thu Jul 08 05:42:21 EDT 2021

STATUS

editing

proposed

#18 by Jon E. Schoenfield at Thu Jul 08 05:42:18 EDT 2021

	NAME	`Primes of the form 80*R_nk + 3, where R_nk is the repunit (A002275) of length nk.`
	COMMENTS	`Primes of the form (8*10^nk - 53)/9. - Vincenzo Librandi, Nov 16 2010`
	CROSSREFS	`Cf. A002275, A056694 (corresponding nk), A099422.`
	STATUS	`approved` `editing`

#17 by Charles R Greathouse IV at Thu Jan 17 13:44:06 EST 2019

LINKS

Makoto Kamada, <a href="httphttps://stdkmd.comnet/nrr/8/88883.htm#prime">Prime numbers of the form 88...883</a>.

Discussion
Thu Jan 17	13:44	OEIS Server: https://oeis.org/edit/global/2791

#16 by Susanna Cuyler at Tue Jan 16 21:54:17 EST 2018

STATUS

proposed

approved

#15 by Jon E. Schoenfield at Tue Jan 16 17:14:39 EST 2018

STATUS

editing

proposed

#14 by Jon E. Schoenfield at Tue Jan 16 17:14:36 EST 2018

COMMENTS

Primes of the form (8*10^n- - 53)/9 [From . - _Vincenzo Librandi, _, Nov 16 2010]

STATUS

approved

editing

#13 by Ray Chandler at Thu May 21 19:20:29 EDT 2015

STATUS

editing

approved

#12 by Ray Chandler at Thu May 21 19:20:25 EDT 2015

CROSSREFS

Cf. A002275, A056694 (corresponding n).), A099422.

STATUS

approved

editing

Last modified August 29 15:03 EDT 2024. Contains 375517 sequences. (Running on oeis4.)