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A038257 as a triangular array

1
63
36369
21632416227
12962592194464881
7776194401944097202430243
46656139968174960116640437408748729
27993697977614696641224720612360183708306182187
1679616

A038257 as a square array

163621612967776466562799361679616
336324259219440139968979776
91621944194401749601469664
2764897201166401224720
81243043740612360
2438748183708
72930618
2187
163621612967776466562799361679616
336324259219440139968979776
91621944194401749601469664
2764897201166401224720
81243043740612360
2438748183708
72930618
2187