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A164942 as a triangular array

1
3-1
9-61
27-279-1
81-10854-121
243-405270-9015-1
729-14581215-540135-181
2187-51035103-2835945-18921-1
6561-1749620412-136085670-1512252-241
19683-5904978732-6123630618-102062268-32427-1

A164942 as a square array

13927812437292187656119683
-1-6-27-108-405-1458-5103-17496-59049
1954270121551032041278732
-1-12-90-540-2835-13608-61236
115135945567030618
-1-18-189-1512-10206
1212522268
-1-24-324
127
-1
13927812437292187656119683
-1-6-27-108-405-1458-5103-17496-59049
1954270121551032041278732
-1-12-90-540-2835-13608-61236
115135945567030618
-1-18-189-1512-10206
1212522268
-1-24-324
127
-1