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A255903 as a triangular array

1
01
022
0385
05233315
075614114452
011127492848675203
0152681518393651903396877
0225474320158003071032835182704140
0301072115675742015441024001221600610465621147

A255903 as a square array

1000000000
1235711152230
2823561272685471072
5331414921518432011567
1514484839361580057420
52675519030710154410
203339632835240012
87718270216006
4140104656
21147
1000000000
1235711152230
2823561272685471072
5331414921518432011567
1514484839361580057420
52675519030710154410
203339632835240012
87718270216006
4140104656
21147