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A173306 as a triangular array

1
11
121
2213
31452
5736105
1814711019
11212261531535
2251846307226042
1127785615321076221
381281003014616213342254
204173563

A173306 as a square array

111235111221138204
1221782527128173
11431412187810056
3567264656303
21011530151
510373246
19152210162
356076133
422242
12
54

A173306 as an upper right triangle

111235111221138204
1221782527128173
11431412187810056
3567264656303
21011530151
510373246
19152210162
356076133
422242
12
54

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Last modified May 31 02:51 EDT 2020. Contains 334747 sequences. (Running on oeis4.)