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A198788 as a triangular array

1
21
311
4321
51211
631221
7542111
87112121
914523311
10372142321
115166443211
1274133513221
139758153

A198788 as a square array

12345678910111213
113135713579
12214147147
1122152615
121221638
11134431
1232455
113313
1223
112
12
1
12345678910111213
113135713579
12214147147
1122152615
121221638
11134431
1232455
113313
1223
112
12
1