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A143515 as a triangular array

1
32
845
216710
551191213
1441614171518
377291922202326
98742242725283134
25847637323033363947
67651105045353841445260
177111996358404346495765

A143515 as a square array

13821551443779872584676517711
2461116294276110199
579141924375063
1012172227324558
13152025303540
182328333843
2631364146
34394449
475257
6065
13821551443779872584676517711
2461116294276110199
579141924375063
1012172227324558
13152025303540
182328333843
2631364146
34394449
475257
6065