Numerators of probabilities in gift exchange problem with n people.

A102262

Numerators of probabilities in gift exchange problem with n people.

Terms

    a(0) =0a(1) =1a(2) =5a(3) =19a(4) =203a(5) =4343a(6) =63853a(7) =58129a(8) =160127a(9) =8885501a(10) =1500518539a(11) =404156337271

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