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A107981 as a triangular array

1
610
204050
50110155175
105245371455490
19647675698011201176
33684013801860222024362520
5401380232532253975451548304950
82521453685522566007700847089109075
12103190

A107981 as a square array

1620501051963365408251210
1040110245476840138021453190
50155371756138023253685
175455980186032255225
4901120222039756600
1176243645157700
252048308470
49508910
9075
1620501051963365408251210
1040110245476840138021453190
50155371756138023253685
175455980186032255225
4901120222039756600
1176243645157700
252048308470
49508910
9075