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A140218 as a triangular array

1
11
121
1211
14121
141211
1411121
14111211
181214121
1812141211
18111412121
181114121211
1812121214121
18121212141211

A140218 as a square array

11111111111111
1224444888888
111111111111
12211221122
1111111111
122444422
11111111
1222222
111111
12244
1111
122
11
1

A140218 as an upper right triangle

11111111111111
1224444888888
111111111111
12211221122
1111111111
122444422
11111111
1222222
111111
12244
1111
122
11
1

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Last modified March 28 11:58 EDT 2024. Contains 371241 sequences. (Running on oeis4.)