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A271315 as a triangular array

1
01
112
1213
23325
354538
58778513
81311121113821
132118191918211334
21342931303129342155
3455475049495047553489

A271315 as a square array

10112358132134
11235813213455
2134711182947
325712193150
53811193049
8513183149
138212950
21133447
342155
5534
89
10112358132134
11235813213455
2134711182947
325712193150
53811193049
8513183149
138212950
21133447
342155
5534
89