Number of matrices with nonnegative integer entries and without zero rows or columns such that sum of all entries is equal to n.
1, 1, 5, 33, 281, 2961, 37277, 546193, 9132865, 171634161, 3581539973
4 seqfan posts
Wed Jan 14 22:52:25 CET 2009 [seqfan] Re: Partitions and A101509
Wed Jan 14 22:18:33 CET 2009 [seqfan] Re: Partitions and A101509
Wed Jan 14 21:04:27 CET 2009 [seqfan] Re: Partitions and A101509
Wed Jan 14 12:10:07 CET 2009 [seqfan] Partitions and A101509
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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