References to A092356

UO-sigma perfect numbers.
6, 60, 1080, 6552, 36720, 47520, 87360, 222768, 288288, 8173440, 49585536

1 seqfan posts

Tue Jun 15 11:34:23 CEST 2010    [seqfan] an interesting but difficult sequence
Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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