Number of ways to occupy n unlabeled phone booths in a circle one by one, each time picking a phone booth adjacent to the smallest number of previously occupied phone booths.
A276657
Number of ways to occupy n unlabeled phone booths in a circle one by one, each time picking a phone booth adjacent to the smallest number of previously occupied phone booths.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =2a(4) =8a(5) =28a(6) =72a(7) =432a(8) =1728a(9) =9792a(10) =56448a(11) =372096a(12) =2419200a(13) =19526400a(14) =144806400a(15) =1310515200a(16) =11338444800a(17) =112903372800
External references
- oeis: A276657