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A000387 Rencontres numbers: permutations with exactly two fixed points.
(Formerly M4138 N1716) 		+0
14
1, 0, 6, 20, 135, 924, 7420, 66744, 667485, 7342280, 88107426, 1145396460, 16035550531, 240533257860, 3848532125880, 65425046139824, 1177650830516985, 22375365779822544, 447507315596451070, 9397653627525472260, 206748379805560389951 (list; graph; listen)
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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

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