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A109878 as a triangular array

1
11
123
26124
624602010
241203601206036
1207202520840420252168
7205040201606720336020161344960
5040403201814406048030240181441209686406480
403203628801814400604800

A109878 as a square array

1112624120720504040320
12624120720504040320362880
312603602520201601814401814400
420120840672060480604800
1060420336030240
36252201618144
168134412096
9608640
6480

A109878 as an upper right triangle

1112624120720504040320
12624120720504040320362880
312603602520201601814401814400
420120840672060480604800
1060420336030240
36252201618144
168134412096
9608640
6480

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Last modified January 23 21:44 EST 2022. Contains 350515 sequences. (Running on oeis4.)