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A337894 as a triangular array

1
21
3211
4201930241
510762941570891995562083717761
640259198392729613703664339709791588399873461795337681498507585317295882241

A337894 as a square array

123456
12120110764025
19302429415708991983927296
11995562083717761370366433970979158839987
1346179533768149850758531729588224
1
123456
12120110764025
19302429415708991983927296
11995562083717761370366433970979158839987
1346179533768149850758531729588224
1