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A248811 as a triangular array

1
-21
7-51
-2022-81
61-8646-111
-182319-22479-141
547-1139991-461121-171
-16403964-41122374-824172-201
4921-1353216300-112344846-1340232-231
-1476245517-6243250002-257728866-2036301-261
44287-151313232813-212438127318-5237014974-2939379-291

A248811 as a square array

1-27-2061-182547-16404921-1476244287
1-522-86319-11393964-1353245517-151313
1-846-224991-411216300-62432232813
1-1179-4612374-1123450002-212438
1-14121-8244846-25772127318
1-17172-13408866-52370
1-20232-203614974
1-23301-2939
1-26379
1-29
1
1-27-2061-182547-16404921-1476244287
1-522-86319-11393964-1353245517-151313
1-846-224991-411216300-62432232813
1-1179-4612374-1123450002-212438
1-14121-8244846-25772127318
1-17172-13408866-52370
1-20232-203614974
1-23301-2939
1-26379
1-29
1