Number of 4-step E, S, NW and NE-moving king's tours on an n X n board summed over all starting positions.
A187587
Number of 4-step E, S, NW and NE-moving king's tours on an n X n board summed over all starting positions.
Terms
- a(0) =0a(1) =5a(2) =84a(3) =286a(4) =604a(5) =1038a(6) =1588a(7) =2254a(8) =3036a(9) =3934a(10) =4948a(11) =6078a(12) =7324a(13) =8686a(14) =10164a(15) =11758a(16) =13468a(17) =15294a(18) =17236a(19) =19294a(20) =21468a(21) =23758a(22) =26164a(23) =28686a(24) =31324a(25) =34078a(26) =36948a(27) =39934a(28) =43036a(29) =46254
External references
- oeis: A187587