login

A156054 as a triangular array

1
11
111
1221
11211
122221
1232321
12333321
123343321
1344554431
13556665531

A156054 as a square array

11111111111
1121222233
122233345
11223345
1233456
123356
12346
1245
135
13
1
11111111111
1121222233
122233345
11223345
1233456
123356
12346
1245
135
13
1