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A201208 as a triangular array

1
22
111
2222
11111
222222
1111111
22222222
111111111
2222222222
11111111111
222222222222
1111111111111
22222222222222

A201208 as a square array

12121212121212
2121212121212
121212121212
21212121212
1212121212
212121212
12121212
2121212
121212
21212
1212
212
12
2
12121212121212
2121212121212
121212121212
21212121212
1212121212
212121212
12121212
2121212
121212
21212
1212
212
12
2