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A277078 as a triangular array

2
10
1-22
1-330
1-46-42
1-510-1050
1-615-2015-62
1-721-3535-2170
1-828-5670-5628-82
1-936-84126-12684-3690
1-1045-120210-252210-12045-102

A277078 as a square array

21111111111
0-2-3-4-5-6-7-8-9-10
236101521283645
0-4-10-20-35-56-84-120
25153570126210
0-6-21-56-126-252
272884210
0-8-36-120
2945
0-10
2
21111111111
0-2-3-4-5-6-7-8-9-10
236101521283645
0-4-10-20-35-56-84-120
25153570126210
0-6-21-56-126-252
272884210
0-8-36-120
2945
0-10
2