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A047991 as a triangular array

1
1-1
11-2
1-2-56
12-13-1424
1-3-235194-120
13-41-87400444-720
1-4-622001009-2356-38285040
14-94-29626095716-22676-2558440320
1-5-1305505273-17765-74120178500270576-362880

A047991 as a square array

1111111111
-11-22-33-44-5
-2-5-13-23-41-62-94-130
6-1451-87200-296550
2494400100926095273
-120444-23565716-17765
-720-3828-22676-74120
5040-25584178500
40320270576
-362880
1111111111
-11-22-33-44-5
-2-5-13-23-41-62-94-130
6-1451-87200-296550
2494400100926095273
-120444-23565716-17765
-720-3828-22676-74120
5040-25584178500
40320270576
-362880