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A255616 as a triangular array

1
11
111
1121
12321
124541
1258951
12611161581
12714253227111
1381836556446161
13922498812512881221
13102764129216279256140321
13113181181343529625512243451

A255616 as a square array

1111111111111
111222223333
1234567891011
1258111418222731
149162536496481
1515325588129181
182764125216343
11146128279529
11681256625
122140512
132243
145
1

A255616 as an upper right triangle

1111111111111
111222223333
1234567891011
1258111418222731
149162536496481
1515325588129181
182764125216343
11146128279529
11681256625
122140512
132243
145
1

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Last modified May 27 19:11 EDT 2024. Contains 372882 sequences. (Running on oeis4.)