Number of ways to write 1/n as a difference of exactly 2 unit fractions.
0, 1, 1, 2, 1, 4, 1, 3, 2, 4, 1, 7, 1, 4, 4, 4, 1, 7, 1, 7, 4, 4, 1, 10, 2, 4, 3, 7, 1, 13, 1, 5, 4
3 seqfan posts
Tue Dec 6 22:07:28 CET 2011 [seqfan] Re: Alternate definition of A089233
Sun Mar 7 22:11:24 CET 2010 [seqfan] Re: A sequence and array
Sun Mar 7 21:14:10 CET 2010 [seqfan] Re: sequence, array, some questions
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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