The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A126699 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
Showing all changes.

A126699

Lesser of twin simili-primes of order 2.
(history; published version)

#8 by Bruno Berselli at Fri Dec 20 11:14:58 EST 2019

STATUS

proposed

approved

#7 by Amiram Eldar at Fri Dec 20 08:16:58 EST 2019

STATUS

editing

proposed

#6 by Amiram Eldar at Fri Dec 20 07:49:37 EST 2019

CROSSREFS

Cf. A123929, A126700.

#5 by Amiram Eldar at Fri Dec 20 07:47:35 EST 2019

COMMENTS

q > p are "twin simili-primes of order 2" if (p, q) are in A123929 and satisfy q - p = 3. Conjecture : this sequence is infinite.

LINKS

Amiram Eldar, <a href="/A126699/b126699.txt">Table of n, a(n) for n = 1..10000</a>

#4 by Amiram Eldar at Fri Dec 20 07:46:37 EST 2019

DATA

5, 28, 148, 281, 419, 718, 778, 839, 916, 1126, 1199, 1318, 1438, 1486, 1499, 1871, 1979, 1991, 2308, 2518, 2729, 3946, 4126, 4546, 4649, 4931, 6046, 6089, 6779, 7859, 8009, 8218, 8351, 8518, 9689, 10006, 10498, 10606, 10859, 11111, 11279, 11698, 12106, 12196

FORMULA

sequence Sequence gives n=A123929(k) for k such that A123929(k+1) - A123929(k) = 3.

EXTENSIONS

More terms from Amiram Eldar, Dec 20 2019

STATUS

approved

editing

#3 by Russ Cox at Fri Mar 30 18:39:24 EDT 2012

AUTHOR

_Benoit Cloitre (benoit7848c(AT)orange.fr), _, Feb 11 2007

Discussion

Fri Mar 30

18:39

OEIS Server: https://oeis.org/edit/global/216

#2 by N. J. A. Sloane at Sun Jun 29 03:00:00 EDT 2008

KEYWORD

nonn,new

nonn

AUTHOR

Benoit Cloitre (abmtbenoit7848c(AT)wanadooorange.fr), Feb 11 2007

#1 by N. J. A. Sloane at Fri May 11 03:00:00 EDT 2007

NAME

Lesser of twin simili-primes of order 2.

DATA

5, 28, 148, 281, 419, 718, 778, 839, 916, 1126

OFFSET

1,1

COMMENTS

q>p are "twin simili-primes of order 2" if (p,q) are in A123929 and satisfy q-p=3. Conjecture : this sequence is infinite

FORMULA

sequence gives n=A123929(k) for k such that A123929(k+1)-A123929(k)=3

CROSSREFS

Cf. A123929.

KEYWORD

nonn

AUTHOR

Benoit Cloitre (abmt(AT)wanadoo.fr), Feb 11 2007

STATUS

approved