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A247045 as a triangular array

1
12
134
1235
133612
1357715
135951715
14510971133
13571119141653
145671313142136
14571081212164241
14616118191916283555
1469914101814

A247045 as a square array

1111111111111
232333434444
43355555566
567910767169
1275911710119
1517719138814
15111413121910
331614121918
5321161614
364228
4135
55
1111111111111
232333434444
43355555566
567910767169
1275911710119
1517719138814
15111413121910
331614121918
5321161614
364228
4135
55