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A221108 as a triangular array

1
12
343
4464
48775
6101110106
712141413127
71217181916138
9161923242419169
10182428283028221810
1020273232343531251911
122030324040424034282212
13

A221108 as a square array

11344677910101213
244810121216182020
36711141719242730
4710141823283232
510131924283240
6121624303440
71319283542
816223140
9182534
101928
1122
12

A221108 as an upper right triangle

11344677910101213
244810121216182020
36711141719242730
4710141823283232
510131924283240
6121624303440
71319283542
816223140
9182534
101928
1122
12

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Last modified August 15 12:09 EDT 2022. Contains 356145 sequences. (Running on oeis4.)