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A220287 as a triangular array

1
22
444
831318
16961399616
324241411141142432
6414229430153829430142264
128550463154232795232795631545504128
2561960645251530619375691450306193745251519606256
512732943130768

A220287 as a square array

1248163264128256512
243196424142255041960673294
43113914119430631544525153130768
8961411153822327953061937
1642494302327955691450
321422631543061937
645504452515
12819606
256

A220287 as an upper right triangle

1248163264128256512
243196424142255041960673294
43113914119430631544525153130768
8961411153822327953061937
1642494302327955691450
321422631543061937
645504452515
12819606
256

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Last modified January 20 03:25 EST 2022. Contains 350467 sequences. (Running on oeis4.)