References to A006516

2^(n-1)*(2^n - 1), n >= 0.
0, 1, 6, 28, 120, 496, 2016, 8128, 32640, 130816, 523776, 2096128, 8386560

1 seqfan posts

Tue Apr 21 23:36:56 CEST 2009    [seqfan] comments about perfect numbers
Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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