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A364870 as a triangular array

1
11
421
27931
256641641
31256251252551
46656777612962163661
8235431176491680724013434971
1677721620971522621443276840965126481
3874204894304672147829695314415904965617298191

A364870 as a square array

1142725631254665682354316777216387420489
129646257776117649209715243046721
13161251296168072621444782969
1425216240132768531441
1536343409659049
16495126561
1764729
1881
19
1
1142725631254665682354316777216387420489
129646257776117649209715243046721
13161251296168072621444782969
1425216240132768531441
1536343409659049
16495126561
1764729
1881
19
1