The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A295311 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A295311

a(n) = n / A295310(n) = n / gcd(n, phi(sigma(n))).
(history; published version)

#9 by Joerg Arndt at Thu Nov 23 12:28:40 EST 2017

STATUS

proposed

approved

#8 by Michel Marcus at Thu Nov 23 11:57:45 EST 2017

STATUS

editing

proposed

#7 by Michel Marcus at Thu Nov 23 11:57:41 EST 2017

PROG

(PARI) a(n) = n/gcd(n, eulerphi(sigma(n))); \\ Michel Marcus, Nov 23 2017

STATUS

approved

editing

#6 by Susanna Cuyler at Wed Nov 22 20:48:37 EST 2017

STATUS

proposed

approved

#5 by Antti Karttunen at Wed Nov 22 11:57:43 EST 2017

STATUS

editing

proposed

#4 by Antti Karttunen at Wed Nov 22 11:40:17 EST 2017

LINKS

Antti Karttunen, <a href="/A295311/b295311.txt">Table of n, a(n) for n = 1..16384</a>

CROSSREFS

Cf. A000010, A000203, A062401, A295301, A295310, A295312, A295313A295314.

#3 by Antti Karttunen at Wed Nov 22 10:12:28 EST 2017

CROSSREFS

Cf. A000010, A000203, A062401, A295301, A295310, A295312, A295313.

#2 by Antti Karttunen at Wed Nov 22 10:01:20 EST 2017

NAME

allocated for Antti Karttunen

a(n) = n / A295310(n) = n / gcd(n, phi(sigma(n))).

DATA

1, 1, 3, 2, 5, 3, 7, 1, 3, 5, 11, 1, 13, 7, 15, 8, 17, 3, 19, 5, 21, 11, 23, 3, 5, 13, 27, 7, 29, 5, 31, 8, 33, 17, 35, 1, 37, 19, 13, 5, 41, 21, 43, 11, 15, 23, 47, 4, 49, 5, 17, 26, 53, 27, 55, 7, 57, 29, 59, 5, 61, 31, 21, 32, 65, 11, 67, 17, 69, 35, 71, 3, 73, 37, 5, 19, 77, 13, 79, 4, 81, 41, 83, 7, 85, 43, 87, 11, 89, 5

OFFSET

1,3

CROSSREFS

Cf. A000010, A000203, A062401, A295301, A295310, A295312.

KEYWORD

allocated

nonn

AUTHOR

Antti Karttunen, Nov 22 2017

STATUS

approved

editing

#1 by Antti Karttunen at Sun Nov 19 17:51:17 EST 2017

NAME

allocated for Antti Karttunen

KEYWORD

allocated

STATUS

approved