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A137680 as a triangular array

1
11
301
7201
174101
40104101
962383101
228561983101
544132461873101
1296316109421873101
3089752260101411773101
7361179362024198411773101
175444272147757423397401773101

A137680 as a square array

113717409622854412963089736117544
102410235613231675217934272
1014819461092606201477
101381842101241574
10137184198233
10137174197
101371740
1013717
10137
1013
101
10
1
113717409622854412963089736117544
102410235613231675217934272
1014819461092606201477
101381842101241574
10137184198233
10137174197
101371740
1013717
10137
1013
101
10
1