This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A287026 List of pairs of amicable numbers (m, n) with record value of m/n. 2
 220, 284, 1184, 1210, 6232, 6368, 10744, 10856, 66928, 66992, 16137628, 16150628, 28118032, 28128368, 766292835, 766512285, 1930301618, 1930741582, 4000783984, 4001351168, 44303273584, 44307987968, 85617896265, 85625175735, 161899964416, 161905117184 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS The 2 members in each pair are adjacent to each other in the sequence. The pairs were found using Sergei Chernykh's Amicable pair list. There are 21 pairs with lesser member < 10^18. LINKS Sergei Chernykh, Amicable pairs list. Shyam Sunder Gupta, Amicable Numbers. EXAMPLE The ratios m/n are                  220/284                = 0.7746...                 1184/1210               = 0.9785...                 6232/6368               = 0.9786...                10744/10856              = 0.9896...                66928/66992              = 0.9990...             16137628/16150628           = 0.9991...             28118032/28128368           = 0.9996...            766292835/766512285          = 0.99971...           1930301618/1930741582         = 0.99977...           4000783984/4001351168         = 0.99985...          44303273584/44307987968        = 0.99989...          85617896265/85625175735        = 0.99991...         161899964416/161905117184       = 0.99996...         456280713808/456281771312       = 0.999997...       52326552030976/52326637800704     = 0.999998...     1132213192149585/1132213862340015   = 0.9999994...    27117998061385216/27118008762013184  = 0.99999960...   226615161368838645/226615243086790155 = 0.99999963...   286707053950093312/286707152546674688 = 0.99999965...   692760387785689984/692760539319737216 = 0.99999978...   794879833279366144/794879862664408064 = 0.99999996... CROSSREFS Cf. A063990, A287011. Cf. A259180 (amicable pairs). Sequence in context: A273259 A262624 A262622 * A233538 A287011 A157107 Adjacent sequences:  A287023 A287024 A287025 * A287027 A287028 A287029 KEYWORD nonn,tabf AUTHOR Amiram Eldar, Aug 31 2017 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified March 20 17:26 EDT 2018. Contains 300990 sequences. (Running on oeis4.)