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A218220 as a triangular array

1
11
11-1
110-1
111-11
1121-11
113510-1
114111311-1
115194134111
116299115389101
117411694365712331-1-1
11855281985208921316101-1-1
11971433192657411000979531597101
111089631340913201334614795629681

A218220 as a square array

11111111111111
1111111111111
-1012345678910
-1-11511192941557189
1-11134191169281433631
1013415343698519263409
-111895712089574113201
-11123321311000933461
101610795347956
1-11159729681
-1-11
-10
1
11111111111111
1111111111111
-1012345678910
-1-11511192941557189
1-11134191169281433631
1013415343698519263409
-111895712089574113201
-11123321311000933461
101610795347956
1-11159729681
-1-11
-10
1