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A237730 as a triangular array

81
348348
151021521510
661013496134966610
28877860101229408601028877
12542854294611452901145290542946125428
54595234126981049903515828110104990353412698545952
23814322152190695855164

A237730 as a square array

8134815106610288771254285459522381432
34821521349686010542946341269821521906
15101349612294011452901049903595855164
661086010114529015828110
2887754294610499035
1254283412698
545952
8134815106610288771254285459522381432
34821521349686010542946341269821521906
15101349612294011452901049903595855164
661086010114529015828110
2887754294610499035
1254283412698
545952