A389463 - OEIS

A389463

Numbers k for which A389461(k) is a positive multiple of (k-A075423(k)).

6, 28, 30, 42, 66, 70, 78, 102, 114, 138, 174, 186, 210, 222, 246, 258, 282, 318, 330, 354, 366, 390, 402, 426, 438, 462, 474, 496, 498, 510, 534, 546, 570, 582, 606, 618, 642, 654, 678, 690, 714, 762, 770, 786, 798, 822, 834, 858, 870, 894, 906, 910, 930, 942, 966, 978, 1002, 1038, 1074, 1086, 1110, 1122, 1146

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OFFSET

1,1

COMMENTS

Numbers k for which A389460(k) > k (equally: A001065(k) >= A007947(n)) and A389461(k) is a multiple of (k-A075423(k)).

Question: Is this disjoint union of A000396 and A087248?

First odd terms: 15015, 19635, 21945, ...

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..10000

Index entries for sequences where odd perfect numbers must occur, if they exist at all.

FORMULA

{k | A389461(k) > 0, A389461(k) == 0 mod (k-A075423(k))}.