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A271875 as a triangular array

1
-11
-1-21
-2-1-31
-5-20-41
-14-5-12-51
-42-14-305-61
-132-42-9-109-71
-429-132-28-40-214-81
-1430-429-90-14-10-720-91
-4862-1430-297-48-500-1627-101

A271875 as a square array

1-1-1-2-5-14-42-132-429-1430-4862
1-2-1-2-5-14-42-132-429-1430
1-30-1-3-9-28-90-297
1-420-1-4-14-48
1-5500-1-5
1-69-200
1-714-70
1-820-16
1-927
1-10
1
1-1-1-2-5-14-42-132-429-1430-4862
1-2-1-2-5-14-42-132-429-1430
1-30-1-3-9-28-90-297
1-420-1-4-14-48
1-5500-1-5
1-69-200
1-714-70
1-820-16
1-927
1-10
1