Total number of preferential arrangements of 1, 2, ..., n things.

A239914

Total number of preferential arrangements of 1, 2, ..., n things.

Terms

    a(0) =1a(1) =4a(2) =17a(3) =92a(4) =633a(5) =5316a(6) =52609a(7) =598444a(8) =7685705a(9) =109933268a(10) =1732565841a(11) =29824133436a(12) =556682481817

External references