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A286001 as a triangular array

1
23
142
5263
17328
4394210
53111542
1263313644
14752157431
168542178653
18953419964520
10752211066312211
74422311855324127
66425128735

A286001 as a square array

1215145121416181076
3427336789746
263913555544
3241132432225
825131524212312
10467171910118
24489687
4366653
154355
3513
202224
1112
7
1215145121416181076
3427336789746
263913555544
3241132432225
825131524212312
10467171910118
24489687
4366653
154355
3513
202224
1112
7