The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A086296 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A086296

Euler's totient of 7-smooth numbers.
(history; published version)

#8 by Michel Marcus at Fri Feb 21 05:20:43 EST 2020

STATUS

reviewed

approved

#7 by Hugo Pfoertner at Fri Feb 21 05:09:54 EST 2020

STATUS

proposed

reviewed

#6 by Amiram Eldar at Fri Feb 21 05:04:59 EST 2020

STATUS

editing

proposed

#5 by Amiram Eldar at Fri Feb 21 04:52:39 EST 2020

COMMENTS

a(n) = A000010(A002473(n)).

FORMULA

a(n) = A000010(A002473(n)).

CROSSREFS

Cf. A000010, A002473.

#4 by Amiram Eldar at Fri Feb 21 04:52:13 EST 2020

LINKS

Amiram Eldar, <a href="/A086296/b086296.txt">Table of n, a(n) for n = 1..10000</a>

STATUS

approved

editing

#3 by Russ Cox at Fri Mar 30 18:50:37 EDT 2012

AUTHOR

_Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), _, Jul 15 2003

Discussion

Fri Mar 30

18:50

OEIS Server: https://oeis.org/edit/global/246

#2 by N. J. A. Sloane at Fri Jan 09 03:00:00 EST 2009

KEYWORD

nonn,new

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystemsgmail.com), Jul 15 2003

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

NAME

Euler's totient of 7-smooth numbers.

DATA

1, 1, 2, 2, 4, 2, 6, 4, 6, 4, 4, 6, 8, 8, 6, 8, 12, 8, 20, 18, 12, 8, 16, 24, 12, 16, 12, 24, 16, 42, 20, 18, 24, 16, 36, 32, 24, 24, 40, 32, 54, 24, 24, 32, 42, 40, 48, 36, 48, 32, 100, 36, 64, 72, 48, 48, 84, 40, 64, 54, 48, 120, 48, 108, 64, 84, 80, 48, 72, 96, 120

OFFSET

1,3

COMMENTS

a(n) = A000010(A002473(n)).

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Jul 15 2003

STATUS

approved