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A140207 as a triangular array

1
11
112
1123
11235
112357
11235711
1123571115
112357111522
11235711152230
1123571115223042
112357111522304256
11235711152230425677

A140207 as a square array

1111111111111
111111111111
22222222222
3333333333
555555555
77777777
11111111111111
151515151515
2222222222
30303030
424242
5656
77

A140207 as an upper right triangle

1111111111111
111111111111
22222222222
3333333333
555555555
77777777
11111111111111
151515151515
2222222222
30303030
424242
5656
77

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Last modified March 2 12:26 EST 2021. Contains 341750 sequences. (Running on oeis4.)