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A169940 as a triangular array

1
11
301
3311
54601
7710611
138276901
1521412317911
272098345681201
25531489610450221211
45563251162946696101501
598948731951826218486

A169940 as a square array

113357131527254559
1034782120535689
11610274198148325487
1066233496116319
1191756104294518
10985066262
11122296184
10121086
1115
10
1
113357131527254559
1034782120535689
11610274198148325487
1066233496116319
1191756104294518
10985066262
11122296184
10121086
1115
10
1