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A047920 as a triangular array

1
10
211
6432
241814119
1209678645344
720600504426362309265
50404320372032162790242821191854
403203528030960272402402421234188061668714833
362880322560

A047920 as a square array

112624120720504040320362880
0141896600432035280322560
131478504372030960
21164426321627240
953362279024024
44309242821234
265211918806
185416687
14833

A047920 as an upper right triangle

112624120720504040320362880
0141896600432035280322560
131478504372030960
21164426321627240
953362279024024
44309242821234
265211918806
185416687
14833

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Last modified July 26 15:24 EDT 2014. Contains 244952 sequences.