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A166343 as a triangular array

1
11
1121
127271
158162581
11217187181211
12482759574427592481
15039765367713677197655031
11014328162056743677102056743281610141
12037106560105240830725943072594105240810656020371

A166343 as a square array

1111111111
112275812124850310142037
1271627182759976532816106560
1587185744367712056741052408
11212759367713677103072594
124897652056743072594
1503328161052408
11014106560
12037
1
1111111111
112275812124850310142037
1271627182759976532816106560
1587185744367712056741052408
11212759367713677103072594
124897652056743072594
1503328161052408
11014106560
12037
1