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A209766 as a triangular array

1
13
137
131317
13134341
13135513399
131355209391239
1313552337391113577
131355233939246930951393
1313552339873589790384573363
1313552339874085

A209766 as a square array

11111111111
3333333333
71313131313131313
1743555555555555
41133209233233233233
99391739939987987
2391113246935894085
57730957903
13938457
3363

A209766 as an upper right triangle

11111111111
3333333333
71313131313131313
1743555555555555
41133209233233233233
99391739939987987
2391113246935894085
57730957903
13938457
3363

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Last modified April 18 04:56 EDT 2024. Contains 371767 sequences. (Running on oeis4.)