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A117724 as a triangular array

0
00
111
0000
12345
111111
14916253649
246810121416
292865126217344513730
312274875108147192243300
4229026864013142422412065881003014674

A117724 as a square array

00101112234
010214491222
103196282790
0411686548268
51251012675640
136122171081314
49143441472422
165131924120
7302436588
30010030
14674
00101112234
010214491222
103196282790
0411686548268
51251012675640
136122171081314
49143441472422
165131924120
7302436588
30010030
14674