Solution to a Diophantine equation: each term is a triangular number and each term + 1 is a square.
0, 3, 15, 120, 528, 4095, 17955, 139128, 609960, 4726275, 20720703, 160554240
3 seqfan posts
Mon Oct 26 12:03:22 CET 2009 [seqfan] Re: A metric and UI for Pandora-like OEIS exploration
Mon Oct 26 11:03:39 CET 2009 [seqfan] A metric and UI for Pandora-like OEIS exploration
Mon Oct 26 09:36:25 CET 2009 [seqfan] A metric and UI for Pandora-like OEIS exploration
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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