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 A262622 Amicable pairs of even numbers. 1
 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 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS 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). LINKS PROG (PARI) 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 CROSSREFS Cf. A002025, A002046, A005843, A063990, A259180, A259933, A262623, A262624. Sequence in context: A259933 A273259 A262624 * A287026 A233538 A287011 Adjacent sequences:  A262619 A262620 A262621 * A262623 A262624 A262625 KEYWORD nonn,tabf AUTHOR Omar E. Pol, Nov 09 2015 STATUS approved

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