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A167560 as a triangular array

1
21
641
241661
120803281
72048019254101
50403360134438482121
4032026880107523072680116141
362880241920967682764861441104156161

A167560 as a square array

12624120720504040320362880
141680480336026880241920
163219213441075296768
1854384307227648
110826806144
1121161104
114156
116
1

A167560 as an upper right triangle

12624120720504040320362880
141680480336026880241920
163219213441075296768
1854384307227648
110826806144
1121161104
114156
116
1

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Last modified August 29 06:09 EDT 2024. Contains 375510 sequences. (Running on oeis4.)