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

(Translated by https://www.hiragana.jp/)
The On-Line Encyclopedia of Integer Sequences® (OEIS®)

Revision History for A085346

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A085346

Least number x so that number of primes between sigma(x) and phi(x) equals n.
(history; published version)

#7 by Joerg Arndt at Sun Nov 19 01:41:41 EST 2017

STATUS

proposed

approved

#6 by Jon E. Schoenfield at Sat Nov 18 21:13:34 EST 2017

STATUS

editing

proposed

#5 by Jon E. Schoenfield at Sat Nov 18 21:13:32 EST 2017

NAME

Least number x so that number of primes between sigma[(x] ) and phi(x) equals n.

FORMULA

a(n)=) = Min{x; A085343(x)=) = n}}.

STATUS

approved

editing

#4 by N. J. A. Sloane at Tue Oct 15 22:32:13 EDT 2013

AUTHOR

_Labos E. (labos(AT)ana.sote.hu), Elemer_, Jul 10 2003

Discussion
Tue Oct 15	22:32	OEIS Server: https://oeis.org/edit/global/2029

#3 by N. J. A. Sloane at Tue Jan 24 03:00:00 EST 2006

KEYWORD

nonn,new

nonn

AUTHOR

Labos E. (labos(AT)ana1ana.sote.hu), Jul 10 2003

#2 by N. J. A. Sloane at Thu Feb 19 03:00:00 EST 2004

FORMULA

a(n)=Min{x;; A085343(x)=n}

KEYWORD

nonn,new

nonn

#1 by N. J. A. Sloane at Sat Sep 13 03:00:00 EDT 2003

	NAME	`Least number x so that number of primes between sigma[x] and phi(x) equals n.`
	DATA	`3, 2, 4, 6, 10, 14, 12, 26, 18, 34, 28, 32, 24, 62, 44, 30, 123, 40, 36, 64, 56, 106, 54, 48, 70, 66, 146, 105, 88, 78, 80, 135, 60, 178, 72, 102, 202, 112, 84, 164, 114, 90, 96, 154, 695, 231, 138, 108, 184, 1141, 176, 140, 126, 244, 132, 160, 326, 232, 186, 208, 120`
	OFFSET	`1,1`
	FORMULA	`a(n)=Min{x;A085343(x)=n}`
	CROSSREFS	`Cf. A000720, A000010, A000203, A070803, A070804, A085341-A085347.`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana1.sote.hu), Jul 10 2003`
	STATUS	`approved`

Last modified September 16 17:01 EDT 2024. Contains 375976 sequences. (Running on oeis4.)