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A078991 as a triangular array

1
01
01-2
0-6-26
0362412-24
0-240-240-240-72120
01800240036002160600-720
0-15120-25200-50400-45360-25200-57605040
014112028224070560084672070560032256065520

A078991 as a square array

100000000
11-636-2401800-15120141120
-2-224-2402400-25200282240
612-2403600-50400705600
-24-722160-45360846720
120600-25200705600
-720-5760322560
504065520
100000000
11-636-2401800-15120141120
-2-224-2402400-25200282240
612-2403600-50400705600
-24-722160-45360846720
120600-25200705600
-720-5760322560
504065520