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A266867 as a triangular array

1
11
102
1046
10177224
105713042760120
1020731501530368154240720
10786843874132028418358960340121995005040
10305724244702374789334961141696526832415907473523129387770440320
1

A266867 as a square array

1111111111
10000000
2417572077863057
67213043150184387424244702
24276053036813202841837478933496
1201542403589603401141696526832
72012199500415907473523
50401293877704
40320
1111111111
10000000
2417572077863057
67213043150184387424244702
24276053036813202841837478933496
1201542403589603401141696526832
72012199500415907473523
50401293877704
40320