Number of cyclic arrangements of {1..n} such that any three neighbors satisfy the triangle inequality.
A338564
Number of cyclic arrangements of {1..n} such that any three neighbors satisfy the triangle inequality.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =0a(4) =0a(5) =1a(6) =2a(7) =17a(8) =51a(9) =175a(10) =827a(11) =3951a(12) =20428a(13) =115262a(14) =692851a(15) =4324011a(16) =29446302a(17) =211048631a(18) =1623253741a(19) =13109205113
External references
- oeis: A338564