References to A139095

Fibonacci numbers whose sum of proper divisors is also a Fibonacci number.
1, 1, 2, 3, 5, 13, 89, 233, 1597, 28657, 514229, 433494437, 2971215073

1 seqfan posts

Thu Sep 17 17:36:43 CEST 2009    [seqfan] Sum of proper divisors of Fibonacci numbers A139095 A005478
Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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