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A047070 as a triangular array

1
11
111
1221
11231
122541
1347951
1437161461
157723302071
1612143053502781
1718123083103773591
1825303011318618011244

A047070 as a square array

111111111111
11212345678
1222437121825
135777141230
1491623303030
1514305383113
162050103186
172777180
1835112
1944
1

A047070 as an upper right triangle

111111111111
11212345678
1222437121825
135777141230
1491623303030
1514305383113
162050103186
172777180
1835112
1944
1

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Last modified May 25 17:59 EDT 2024. Contains 372804 sequences. (Running on oeis4.)