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A199512 as a triangular array

1
12
235
35813
58132134
81321345589
1321345589144233
21345589144233377610
3455891442333776109871597
5589144233377610987159725844181

A199512 as a square array

11235813213455
23581321345589
581321345589144
1321345589144233
345589144233377
89144233377610
233377610987
6109871597
15972584
4181
11235813213455
23581321345589
581321345589144
1321345589144233
345589144233377
89144233377610
233377610987
6109871597
15972584
4181