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A208909 as a triangular array

1
12
166
1102016
114426844
11872172220120
122110344648696328
126156600148023362160896
13021095629005984812866082448
1342721428512412984230562753619984

A208909 as a square array

1111111111
2610141822263034
6204272110156210272
16681723446009561428
44220648148029005124
1206962336598412984
3282160812823056
896660827536
244819984
1111111111
2610141822263034
6204272110156210272
16681723446009561428
44220648148029005124
1206962336598412984
3282160812823056
896660827536
244819984

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Last modified September 20 18:47 EDT 2024. Contains 376075 sequences. (Running on oeis4.)