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A331431 as a triangular array

1
-26
3-2430
-460-180140
5-120630-1120630
-6210-16805040-63002772
7-3363780-1680034650-3326412012
-8504-756046200-138600216216-16816851480
9-72013860-110880450450-10090081261260-823680218790

A331431 as a square array

1-23-45-67-89
6-2460-120210-336504-720
30-180630-16803780-756013860
140-11205040-1680046200-110880
630-630034650-138600450450
2772-33264216216-1009008
12012-1681681261260
51480-823680
218790
1-23-45-67-89
6-2460-120210-336504-720
30-180630-16803780-756013860
140-11205040-1680046200-110880
630-630034650-138600450450
2772-33264216216-1009008
12012-1681681261260
51480-823680
218790