References to A154139

Indices k such that 4 plus the k-th triangular number is a perfect square.
0, 6, 9, 39, 56, 230, 329, 1343, 1920, 7830, 11193, 45639, 65240, 266006, 380249


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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