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A380390 as a triangular array

1
212
3113
41122314
5211215
6212113342516
731231351317
8312211445122718
94213112123371419
1041222313411556473829110
11532125157121315111

A380390 as a square array

1234567891011
1211122212331244125
1323111312322132233
14123411141121342
152535451115125
16131223561
1727374757
18143812
192913
11015
111
1234567891011
1211122212331244125
1323111312322132233
14123411141121342
152535451115125
16131223561
1727374757
18143812
192913
11015
111