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A112599 as a triangular array

1
11
222
3030
42022
504040
6131213
75457375
877756577
9787774785
1079796579610
11767848766114
12595125959510512
13979661397

A112599 as a square array

112345678910111213
1202015777759
230434789697
02015777759
24275798126
013676456
375458913
5777759
789697
5665
101110
45
12
112345678910111213
1202015777759
230434789697
02015777759
24275798126
013676456
375458913
5777759
789697
5665
101110
45
12