Number of cyclic arrangements of S={1,2,...,n} such that the difference between any two neighbors is 2^k for some k=0,1,2,...
A242519
Number of cyclic arrangements of S={1,2,...,n} such that the difference between any two neighbors is 2^k for some k=0,1,2,...
Terms
- a(0) =0a(1) =1a(2) =1a(3) =1a(4) =4a(5) =8a(6) =14a(7) =32a(8) =142a(9) =426a(10) =1204a(11) =3747a(12) =9374a(13) =26306a(14) =77700a(15) =219877a(16) =1169656a(17) =4736264a(18) =17360564a(19) =69631372a(20) =242754286a(21) =891384309a(22) =3412857926a(23) =12836957200a(24) =42721475348a(25) =152125749587a(26) =549831594988
External references
- oeis: A242519