Number of 9-step S, NW and NE-moving king's tours on an n X n board summed over all starting positions.
A187383
Number of 9-step S, NW and NE-moving king's tours on an n X n board summed over all starting positions.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =340a(4) =3060a(5) =10320a(6) =24892a(7) =46412a(8) =75567a(9) =111492a(10) =154187a(11) =203652a(12) =259887a(13) =322892a(14) =392667a(15) =469212a(16) =552527a(17) =642612a(18) =739467a(19) =843092a(20) =953487a(21) =1070652a(22) =1194587a(23) =1325292a(24) =1462767a(25) =1607012a(26) =1758027a(27) =1915812a(28) =2080367a(29) =2251692
External references
- oeis: A187383