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A267997 as a triangular array

4
1616
6425664
25040964096250
9646250026214462500964
367492929615625000156250009292963674
138681349827689584134435526274268958413441349827613868
5191719232142449592666024

A267997 as a square array

4166425096436741386851917
1625640966250092929613498276192321424
6440962621441562500089584134449592666024
25062500156250003552627426
964929296895841344
367413498276
13868
4166425096436741386851917
1625640966250092929613498276192321424
6440962621441562500089584134449592666024
25062500156250003552627426
964929296895841344
367413498276
13868

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Last modified September 19 20:04 EDT 2024. Contains 376014 sequences. (Running on oeis4.)