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A209774 as a triangular array

1
23
278
3122521
319568455
426103227269144
436169486848833377
545259914207829992518987
5583721565439382771019274752584
6695182503834219420312693360021881

A209774 as a square array

1223344556
3712192636455869
82556103169259372518
218422748691415652503
55269848207843938342
1448332999827719420
37725181019231269
987747533600
258421881

A209774 as an upper right triangle

1223344556
3712192636455869
82556103169259372518
218422748691415652503
55269848207843938342
1448332999827719420
37725181019231269
987747533600
258421881

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Last modified March 28 05:02 EDT 2024. Contains 371235 sequences. (Running on oeis4.)