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A242591 as a triangular array

1
122
2154
6292
261332
62862438
24318112856
10016951260425240
6704501302011060
40330352662015056658820
210101805120160462151471512

A242591 as a square array

112262624100640210
2126283167033010
549161895435180
2324112502665
3231260120120
8854301501
625201560
2401066462
6058815
20147
1512
112262624100640210
2126283167033010
549161895435180
2324112502665
3231260120120
8854301501
625201560
2401066462
6058815
20147
1512