The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A180164 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
newer changes | Showing entries 11-20 | older changes

A180164

The sum of the two numbers in an amicable pair, A002025(n) + A002046(n).
(history; published version)

#25 by Amiram Eldar at Sun Dec 13 01:34:48 EST 2020

LINKS

T. D. Noe, Amiram Eldar, <a href="/A180164/b180164_1.txt">Table of n, a(n) for n = 1..100010000</a>

STATUS

approved

editing

#24 by N. J. A. Sloane at Fri Oct 27 22:20:42 EDT 2017

STATUS

reviewed

approved

#23 by Andrey Zabolotskiy at Fri Oct 27 12:52:47 EDT 2017

STATUS

proposed

reviewed

#22 by Omar E. Pol at Sun Oct 22 12:40:10 EDT 2017

STATUS

editing

proposed

#21 by Omar E. Pol at Sun Oct 22 12:40:05 EDT 2017

CROSSREFS

Cf. A002025, A002046, A066539, A259180 (amicable pairs).

STATUS

proposed

editing

#20 by Omar E. Pol at Sun Oct 22 12:34:20 EDT 2017

STATUS

editing

proposed

#19 by Omar E. Pol at Sun Oct 22 12:33:10 EDT 2017

FORMULA

a(n) = A259180(2n-1) + A259180(2n). - Omar E. Pol, Oct 22 2017

CROSSREFS

Cf. A002025, A002046, A259180.

STATUS

approved

editing

Discussion

Sun Oct 22

12:34

Omar E. Pol: Added formula and cross-references.

#18 by Peter Luschny at Thu Feb 05 14:56:59 EST 2015

STATUS

reviewed

approved

#17 by Michel Marcus at Mon Feb 02 13:20:16 EST 2015

STATUS

proposed

reviewed

#16 by Michel Marcus at Mon Feb 02 03:41:40 EST 2015

STATUS

editing

proposed