Indices k such that 9 plus the k-th triangular number is a perfect square.
0, 10, 13, 63, 80, 370, 469, 2159, 2736, 12586, 15949, 73359, 92960, 427570
4 seqfan posts
Mon Nov 9 17:22:27 CET 2009 [seqfan] Re: (no subject)
Mon Nov 9 16:52:34 CET 2009 [seqfan] Re: (no subject)
Mon Nov 9 16:46:17 CET 2009 [seqfan] (no subject)
Mon Nov 9 16:42:16 CET 2009 [seqfan] (no subject)
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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