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A257463 as a triangular array

1
11
111
1111
11211
112511
113101711
11323937311
11440465141738811
1147317461983432152246111
1151145741190131153248910164891815511

A257463 as a square array

11111111111
1111111111
112233445
11510234073114
11179346517465741
1173141719834190131
11388321521532489
1124611016489
1118155
11
1
11111111111
1111111111
112233445
11510234073114
11179346517465741
1173141719834190131
11388321521532489
1124611016489
1118155
11
1