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A215870 as a triangular array

1
11
111
1111
12111
122111
1544111
1512104111
1142978208111
114110262189508111
14229030011642123310016111
1421274116942645115485298825016111
1132

A215870 as a square array

1111111111111
111225514144242132
1112412291102901274
11141078262300111694
111420189164226451
111850123315485
11181002988
11116250
11116
111
11
1

A215870 as an upper right triangle

1111111111111
111225514144242132
1112412291102901274
11141078262300111694
111420189164226451
111850123315485
11181002988
11116250
11116
111
11
1

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)