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A108556 as a triangular array

1
12
144
1123020
12412019296
1403309401080432
1607323200624055681856
184141487082520037184271047744
11122480203528096017382420608012697631744
114440504258822154464382410960321085760579456128768

A108556 as a square array

1111111111
241224406084112144
430120330732141424804050
20192940320087082035242588
96108062402520080960221544
432556837184173824643824
1856271042060801096032
77441269761085760
31744579456
128768
1111111111
241224406084112144
430120330732141424804050
20192940320087082035242588
96108062402520080960221544
432556837184173824643824
1856271042060801096032
77441269761085760
31744579456
128768