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A176861 as a triangular array

1
-6-6
366436
-240-600-600-240
18005760810057601800
-15120-58800-105840-105840-58800-15120
141120645120141120018063361411200645120141120
-1451520-7620480-19595520-30481920-30481920-19595520-7620480-1451520

A176861 as a square array

1-636-2401800-15120141120-1451520
-664-6005760-58800645120-7620480
36-6008100-1058401411200-19595520
-2405760-1058401806336-30481920
1800-588001411200-30481920
-15120645120-19595520
141120-7620480
-1451520
1-636-2401800-15120141120-1451520
-664-6005760-58800645120-7620480
36-6008100-1058401411200-19595520
-2405760-1058401806336-30481920
1800-588001411200-30481920
-15120645120-19595520
141120-7620480
-1451520