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A038270 as a triangular array

1
74
495616
34358833664
2401548847041792256
1680748020548803136089601024
117649403368576240439040188160430084096
8235433294172564715253782403073280105369620070416384

A038270 as a square array

1749343240116807117649823543
4565885488480204033683294172
163364704548805762405647152
641792313604390405378240
25689601881603073280
1024430081053696
4096200704
16384
1749343240116807117649823543
4565885488480204033683294172
163364704548805762405647152
641792313604390405378240
25689601881603073280
1024430081053696
4096200704
16384