The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A326235

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

A326235

Numbers k such that N = (35k)^6 is a twin rank (A002822: 6N +- 1 are twin primes).
(history; published version)

#23 by Jon E. Schoenfield at Sun Aug 22 13:30:36 EDT 2021

STATUS

editing

approved

#22 by Jon E. Schoenfield at Sun Aug 22 13:30:34 EDT 2021

EXTENSIONS

a(1..10^4) independently computed using Mathematica and PARI/gp, GP, by A. D. and M. F. Hasler, Jun 19 2019

STATUS

approved

editing

#21 by Susanna Cuyler at Sat Jul 17 11:24:20 EDT 2021

STATUS

reviewed

approved

#20 by Joerg Arndt at Sat Jul 17 07:36:55 EDT 2021

STATUS

proposed

reviewed

#19 by Jon E. Schoenfield at Sat Jul 17 05:09:48 EDT 2021

STATUS

editing

proposed

#18 by Jon E. Schoenfield at Sat Jul 17 05:09:46 EDT 2021

NAME

Numbers n k such that N = (35n35k)^6 is a twin rank (A002822: 6N +- 1 are twin primes).

STATUS

approved

editing

#17 by M. F. Hasler at Wed Jun 19 17:40:56 EDT 2019

STATUS

editing

approved

#16 by M. F. Hasler at Wed Jun 19 17:40:51 EDT 2019

COMMENTS

Dinculescu notes that if N = m^2 > 1 is a twin rank (i.e., in A002822), then m is a multiple of 5, and if k N = m^3 > 1, then m is a multiple of 7, cf. A326231 and A326233. Thus, when k N = m^6, then m is a multiple of 35, and here we list these m/35.

STATUS

approved

editing

#15 by M. F. Hasler at Wed Jun 19 17:38:16 EDT 2019

STATUS

editing

approved

#14 by M. F. Hasler at Wed Jun 19 17:38:08 EDT 2019

LINKS

_Antonie A. Dinculescu_ and _M. F. Hasler_, , <a href="/A326235/b326235.txt">Table of n, a(n) for n = 1..10000</a>

STATUS

approved

editing