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A261097 as a triangular array

0
11
202
3343
42054
555125
6414536
77300477
8682311268
99109121313109
1086111001812141110
111111781119191615811
1210710119018201716912
13139661011222114171813
141214897140223221561914

A261097 as a square array

01234567891011121314
103254769811101312
2405138106117914
35140291171068
4250311081169
534120119107
67121318190114
761312191810
810141620222
91115172123
108161422
1191715
12186
1319
14
01234567891011121314
103254769811101312
2405138106117914
35140291171068
4250311081169
534120119107
67121318190114
761312191810
810141620222
91115172123
108161422
1191715
12186
1319
14