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A162315 as a triangular array

1
31
161
3391
1126121
353010151
118156015181
37633510521211
124281687016828241
391088437812625236271
1304536021075621036045301

A162315 as a square array

13131313131
16312518724930
1963015632810845
11210603516884360
1151510570378210
11821168126756
12128252210
12436360
12745
130
1
13131313131
16312518724930
1963015632810845
11210603516884360
1151510570378210
11821168126756
12128252210
12436360
12745
130
1