A262624 -id:A262624 - cp's OEIS frontend

A262625 Odd amicable numbers.

12285, 14595, 67095, 69615, 71145, 87633, 100485, 122265, 124155, 139815, 522405, 525915, 802725, 863835, 947835, 1125765, 1175265, 1280565, 1340235, 1358595, 1438983, 1486845, 1798875, 1870245, 4482765, 5120595, 5357625, 5684679, 5730615, 6088905, 6377175, 6680025, 8619765, 9071685, 9206925, 9491625, 9498555, 9627915

Offset: 1

Omar E. Pol, Oct 02 2015

nonn

Odd numbers that are also amicable numbers.

Intersection of A005408 and A063990.

Antti Karttunen, Table of n, a(n) for n = 1..30391 (odd numbers found from 77977-term b-file prepared for A063990 by _T. D. Noe_)

Cf. A005408, A063990, A262624.

A262622 Amicable pairs of even numbers.

Original entry on oeis.org

220, 284, 1184, 1210, 2620, 2924, 5020, 5564, 6232, 6368, 10744, 10856, 17296, 18416, 63020, 76084, 66928, 66992, 79750, 88730, 122368, 123152, 141664, 153176, 142310, 168730, 171856, 176336, 176272, 180848, 185368, 203432, 196724, 202444, 280540, 365084, 308620, 389924, 319550, 430402, 356408, 399592, 437456, 455344

Offset: 1

Omar E. Pol, Nov 09 2015

If there are no amicable pairs whose members have distinct parity then this is also the even terms of A259180.
First differs from A063990, A259180, A259933 at a(13).
First differs from A262624 at a(16).

Amiram Eldar, Table of n, a(n) for n = 1..20000

Cf. A002025, A002046, A005843, A063990, A259180, A259933, A262623, A262624.

listap(nn) = {forstep(n=2, nn, 2, m = sigma(n)-n; if ((m > n) && (n==sigma(m)-m), print1(n, ", ", m, ", ")););} \\ Michel Marcus, Nov 14 2015

cp's OEIS Frontend

A262625 Odd amicable numbers.

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