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Revision History for A101184 (Underlined text is an addition; strikethrough text is a deletion.)

Showing all changes.
A101184 a(n) = n + pi(n) + pi(pi(n)) + pi(pi(pi(n))) + pi(pi(pi(pi(n)))) + ...
(history; published version)
#9 by Michel Marcus at Sun Jun 07 10:23:59 EDT 2020
STATUS

reviewed

approved

#8 by Joerg Arndt at Sun Jun 07 09:30:39 EDT 2020
STATUS

proposed

reviewed

#7 by Rémy Sigrist at Sun Jun 07 09:15:13 EDT 2020
STATUS

editing

proposed

#6 by Rémy Sigrist at Sun Jun 07 08:54:44 EDT 2020
LINKS

Rémy Sigrist, <a href="/A101184/b101184.txt">Table of n, a(n) for n = 1..10000</a>

PROG

(PARI) a(n) = { my (v=0); while (n, v+=n; n=primepi(n)); v } \\ Rémy Sigrist, Jun 07 2020

STATUS

approved

editing

Discussion
Sun Jun 07 09:15 
Rémy Sigrist: added b-file and program
#5 by Russ Cox at Fri Mar 30 18:40:21 EDT 2012
AUTHOR

_Jonathan Vos Post (jvospost3(AT)gmail.com) _ and Robert G. Wilson v, Dec 03 2004

Discussion
Fri Mar 30 18:40 
OEIS Server: https://oeis.org/edit/global/228
#4 by Russ Cox at Fri Mar 30 17:31:07 EDT 2012
AUTHOR

Jonathan Vos Post (jvospost3(AT)gmail.com) and _Robert G. Wilson v (rgwv(AT)rgwv.com), _, Dec 03 2004

Discussion
Fri Mar 30 17:31 
OEIS Server: https://oeis.org/edit/global/156
#3 by N. J. A. Sloane at Fri Jan 09 03:00:00 EST 2009
KEYWORD

nonn,new

nonn

AUTHOR

Jonathan Vos Post (jvospost2jvospost3(AT)yahoogmail.com) and Robert G. Wilson v (rgwv(AT)rgwv.com), Dec 03 2004

#2 by N. J. A. Sloane at Mon Oct 09 03:00:00 EDT 2006
KEYWORD

nonn,new

nonn

AUTHOR

Jonathan Vos Post (jvospost2(AT)yahoo.com) & ) and Robert G. Wilson v (rgwv(AT)rgwv.com), Dec 03 2004

#1 by N. J. A. Sloane at Sun Feb 20 03:00:00 EST 2005
NAME

a(n) = n + pi(n) + pi(pi(n)) + pi(pi(pi(n))) + pi(pi(pi(pi(n)))) + ...

DATA

1, 3, 6, 7, 11, 12, 14, 15, 16, 17, 22, 23, 25, 26, 27, 28, 31, 32, 34, 35, 36, 37, 39, 40, 41, 42, 43, 44, 46, 47, 53, 54, 55, 56, 57, 58, 60, 61, 62, 63, 66, 67, 69, 70, 71, 72, 74, 75, 76, 77, 78, 79, 81, 82, 83, 84, 85, 86, 90, 91, 93, 94, 95, 96, 97, 98, 101, 102, 103, 104

OFFSET

1,2

MATHEMATICA

f[n_] := Plus @@ FixedPointList[ PrimePi, n]; Table[ f[n], {n, 70}]

CROSSREFS

Cf. A000720, Complement in A101185.

KEYWORD

nonn

AUTHOR

Jonathan Vos Post (jvospost2(AT)yahoo.com) & Robert G. Wilson v (rgwv(AT)rgwv.com), Dec 03 2004

STATUS

approved

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Last modified August 29 11:27 EDT 2024. Contains 375516 sequences. (Running on oeis4.)