A260087 Larger of amicable pair (x, y) as they are listed in A259933.

284, 1210, 2924, 5564, 6368, 10856, 14595, 18416, 66992, 71145, 76084, 87633, 88730, 124155, 123152, 139815, 153176, 168730, 176336, 180848, 203432, 202444, 365084, 389924, 430402, 399592, 455344, 486178, 514736, 525915, 669688, 686072, 652664, 691256, 712216, 783556, 796696, 863835, 901424, 980984, 1043096, 1125765

Offset

1,1

Comments

Another version of A002046.

First differs from A002046 at a(9).

Links

Table of n, a(n) for n=1..42.

Laszlo Hars, Performance compared to mathematica Julia-users (2014)

Khelleos, Amicable numbers, CyberForum.ru (2011)

OEIS Wiki, Amicable numbers (This page needs work)

Wikipédia, Barátságos számok (contains a mistake: A063990 should be replaced with A259933)

Formula

a(n) = A259933(2n) = A259953(n) - A259933(2n-1) = A259953(n) - A260086(n).

Crossrefs

Cf. A002046, A063990, A259180, A259933, A259953, A260086.

Sequence in context: A092681 A090789 A234970 * A002046 A385186 A339679

Adjacent sequences: A260084 A260085 A260086 * A260088 A260089 A260090

Keyword

nonn

Author

Omar E. Pol, Jul 15 2015

Status

approved