Number of 2-color vertex orderings of the labeled path graph on n vertices in which the number 1 is assigned to a vertex in an even position.
A360515
Number of 2-color vertex orderings of the labeled path graph on n vertices in which the number 1 is assigned to a vertex in an even position.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =9a(4) =24a(5) =185a(6) =720a(7) =7217a(8) =35840a(9) =451089a(10) =2741760a(11) =41375609a(12) =297133056a(13) =5232134921a(14) =43356465152a(15) =872492313825
External references
- oeis: A360515