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A209566 as a triangular array

1
13
137
131015
13103131
1310348863
131034113233127
131034116359586255
13103411639310841419511
1310341163961306312033401023
13103411639613494216

A209566 as a square array

11111111111
3333333333
71010101010101010
1531343434343434
3188113116116116116
63233359393396396
127586108413061349
255141931204216
5113340
1023

A209566 as an upper right triangle

11111111111
3333333333
71010101010101010
1531343434343434
3188113116116116116
63233359393396396
127586108413061349
255141931204216
5113340
1023

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Last modified March 29 08:59 EDT 2024. Contains 371268 sequences. (Running on oeis4.)