Sum of entries in the first cycles of all permutations of [n].
A284816
Sum of entries in the first cycles of all permutations of [n].
Terms
- a(0) =1a(1) =4a(2) =21a(3) =132a(4) =960a(5) =7920a(6) =73080a(7) =745920a(8) =8346240a(9) =101606400a(10) =1337212800a(11) =18920563200a(12) =286442956800
External references
- oeis: A284816