A169934 Number of permutations of 1..n with the number moved left exceeding the number moved right by 2.
0, 0, 0, 1, 5, 66, 392, 4859, 34659, 482272, 4099634, 65762489, 653977909, 12026621478, 137361430156, 2862534403223, 36968414699239, 862935261673212, 12440701298168534, 321935664074780549, 5126628962937663529, 145768013651370381026, 2541561479354892816304
Offset: 1
Keywords
Extensions
a(19)-a(20) from Alois P. Heinz, Jul 31 2018
a(21)-a(23) from Alois P. Heinz, Apr 28 2024