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A207823 as a triangular array

1
41
1581
5646121
20923293161
7801091592156201
2911491233661200235241
10864214681778480102120330281
40545918248923848624162553416441321
151316386373430992275724111524295895152568361

A207823 as a square array

14155620978029111086440545151316
1846232109149122146891824386373
1129359233661778489238430992
1161561200801048624275724
120235212016255111524
124330341629589
1284415152
132568
136
1
14155620978029111086440545151316
1846232109149122146891824386373
1129359233661778489238430992
1161561200801048624275724
120235212016255111524
124330341629589
1284415152
132568
136
1