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A163904 as a triangular array

1
12
626
3363
16634
333688
1343442
12222222
624444826
6624488466
126122484412618
661262484612186
31218692286612183
361818

A163904 as a square array

116313116612633
22363322666126
6663424212121818
336324426618
484244429
84248842
2288482
224448
661266
66126
181812
618
3

A163904 as an upper right triangle

116313116612633
22363322666126
6663424212121818
336324426618
484244429
84248842
2288482
224448
661266
66126
181812
618
3

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Last modified April 24 15:57 EDT 2024. Contains 371961 sequences. (Running on oeis4.)