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A373270 as a triangular array

1
11
111
1221
12421
134321
1376421
14886421
141012105421
15121513116421
1515212017116421
161625262116106421
16203336342417116421
1722384644342517116421
172548585650382416116421

A373270 as a square array

111111111111111
11223344556677
12447810121516202225
1236812152125333848
124610132026364658
1245111721344456
12461116243450
124610172538
1246111724
12461116
124611
1246
124
12
1
111111111111111
11223344556677
12447810121516202225
1236812152125333848
124610132026364658
1245111721344456
12461116243450
124610172538
1246111724
12461116
124611
1246
124
12
1