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A262623
Amicable pairs of odd numbers.
7
12285, 14595, 67095, 71145, 69615, 87633, 100485, 124155, 122265, 139815, 522405, 525915, 802725, 863835, 947835, 1125765, 1175265, 1438983, 1280565, 1340235, 1358595, 1486845, 1798875, 1870245, 4482765, 5120595, 5357625, 5684679, 5730615, 6088905, 6377175, 6680025, 8619765, 9627915, 9071685, 9498555, 9206925, 10791795
(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 odd terms of A259180.
First differs from A262625 at a(4).
REFERENCES
Song Y. Yan, Perfect, Amicable and Sociable Numbers. A Computational Approach, World Scientific, 1996, pages 151 - 153.
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..20000
Sergei Chernykh, Amicable pairs list
PROG
(PARI) lista(nn) = {forstep(n=1, 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, A005408, A063990, A259180, A262622, A262625.
Sequence in context: A358320 A358022 A262625 * A140688 A137489 A233900
Adjacent sequences: A262620 A262621 A262622 * A262624 A262625 A262626
KEYWORD
nonn,tabf
AUTHOR
Omar E. Pol, Nov 09 2015
STATUS
approved

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Last modified December 2 21:25 EST 2024. Contains 378341 sequences.
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