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A003989 as a triangular array

1
11
121
1111
12321
111111
1214121
11311311
121252121
1111111111
12341614321
111111111111
1212127212121
11315311351311
121

A003989 as a square array

111111111111111
12121212121212
1131131131131
12141214121
1111511115
123216123
11111171
1214121
113113
12125
1111
123
11
1

A003989 as an upper right triangle

111111111111111
12121212121212
1131131131131
12141214121
1111511115
123216123
11111171
1214121
113113
12125
1111
123
11
1

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Last modified August 1 00:13 EDT 2021. Contains 346377 sequences. (Running on oeis4.)