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A236987 as a triangular array

256
888888
300038523000
11388162121621211388
4309685064789768506443096
171036429108556322556322429108171036
68087223807423448154630477634481542380742680872
27705401289119026255552

A236987 as a square array

256888300011388430961710366808722770540
88838521621285064429108238074212891190
30001621278976556322344815426255552
11388850645563226304776
430964291083448154
1710362380742
680872
256888300011388430961710366808722770540
88838521621285064429108238074212891190
30001621278976556322344815426255552
11388850645563226304776
430964291083448154
1710362380742
680872