Sum of the reflection lengths of all permutations of n letters.
A067318
Sum of the reflection lengths of all permutations of n letters.
Terms
- a(0) =0a(1) =1a(2) =7a(3) =46a(4) =326a(5) =2556a(6) =22212a(7) =212976a(8) =2239344a(9) =25659360a(10) =318540960a(11) =4261576320a(12) =61148511360a(13) =937030429440
External references
- oeis: A067318