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A055138 as a triangular array

1
-11
0-11
10-21
-120-21
-1-360-31
4-3-780-31
-118-18-13170-41
-19-456-28-22200-41
31-12760136-98-34360-51
120163-51180288-126-50400-51

A055138 as a square array

1-101-1-14-1-1931120
1-102-3-318-4-127163
1-206-7-185660-511
1-208-13-2813680
1-3017-22-98288
1-3020-34-126
1-4036-50
1-4040
1-50
1-5
1
1-101-1-14-1-1931120
1-102-3-318-4-127163
1-206-7-185660-511
1-208-13-2813680
1-3017-22-98288
1-3020-34-126
1-4036-50
1-4040
1-50
1-5
1