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A197419 as a triangular array

1
-11
5-21
-15-31
1-25-41
11-525-51
-513-1025-61
-1-577-3535-71
7-4-10287-2870-81
321-6-102163-4230-91
-15321-20-254221-6075-101
-5-153377-55-557733-165275-111
7601-10-4566231-132-11013299-11055-121

A197419 as a square array

1-15-111-5-173-15-57601
1-25-211-5-4213-15-10
1-35-537-10-62133-45
1-425-10728-10-207766
1-525-35721-25-55231
1-635-286342-55-132
1-770-422177-110
1-830-6033132
1-975-16599
1-10275-110
1-1155
1-12
1
1-15-111-5-173-15-57601
1-25-211-5-4213-15-10
1-35-537-10-62133-45
1-425-10728-10-207766
1-525-35721-25-55231
1-635-286342-55-132
1-770-422177-110
1-830-6033132
1-975-16599
1-10275-110
1-1155
1-12
1