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A120406 as a triangular array

1
22
565
14181814
4256605642
132180200200180132
429594675700675594429
14302002231024502450231020021430
486268648008862488208624800868644862

A120406 as a square array

125144213242914304862
26185618059420026864
5186020067523108008
145620070024508624
4218067524508820
13259423108624
42920028008
14306864
4862
125144213242914304862
26185618059420026864
5186020067523108008
145620070024508624
4218067524508820
13259423108624
42920028008
14306864
4862