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A264628 as a triangular array

0
11
022
0441
191381
0164022164
03712510861326
176393684660280645
016012002736610740328321287
0337375913556372255035319521237325615
17041157268972349391604916

A264628 as a square array

01001001001
1249163776160337704
2413401253931200375911572
182210868427361355668972
11661660610737225349391
432280403250353604916
66483219521
51282373
7256
15
01001001001
1249163776160337704
2413401253931200375911572
182210868427361355668972
11661660610737225349391
432280403250353604916
66483219521
51282373
7256
15