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A213205 as a triangular array

1
54
236
1091413
78111215
191823222726
16172021242528
3231363540394443
293033343738414245
49485352575661606564
4647505154555859626366
70

A213205 as a square array

15210719163229494670
4398181731304847
61411232036335350
1312222135345251
15272440375754
262539385655
2844416158
43426059
456562
6463
66
15210719163229494670
4398181731304847
61411232036335350
1312222135345251
15272440375754
262539385655
2844416158
43426059
456562
6463
66