A260086 Smaller of amicable pair (x, y) as they are listed in A259933.

220, 1184, 2620, 5020, 6232, 10744, 12285, 17296, 66928, 67095, 63020, 69615, 79750, 100485, 122368, 122265, 141664, 142310, 171856, 176272, 185368, 196724, 280540, 308620, 319950, 356408, 437456, 469028, 503056, 522405, 600392, 609928, 643336, 624184, 635624, 667964, 726104, 802725, 879712, 898216, 998104, 947835

Offset: 1

Author

Omar E. Pol, Jul 15 2015

Keywords

• nonn

Comments

Another version of A002025.

First differs from A002025 at a(9).

Links

• 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)

Crossrefs

Cf. A002025, A063990, A259180, A259933, A259953, A260087.

Formula

a(n) = A259933(2n-1) = A259953(n) - A259933(2n) = A259953(n) - A260087(n).