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A039912 as a triangular array

1
1-2
1-34
1-46-8
1-510-916
1-615-209-32
1-721-3536064
1-828-5670-64-27-128
1-936-84126-12512081256
1-1045-120210-252200-240-162-512
1-1155-165330-462463-2754962431024
1-1266-220495-792924

A039912 as a square array

111111111111
-2-3-4-5-6-7-8-9-10-11-12
461015212836455566
-8-9-20-35-56-84-120-165-220
1693670126210330495
-320-64-125-252-462-792
64-27120200463924
-12881-240-275
256-162496
-512243
1024
111111111111
-2-3-4-5-6-7-8-9-10-11-12
461015212836455566
-8-9-20-35-56-84-120-165-220
1693670126210330495
-320-64-125-252-462-792
64-27120200463924
-12881-240-275
256-162496
-512243
1024