Number of 7-step knight's tours on an (n+2) X (n+2) board summed over all starting positions.

A186856

Number of 7-step knight's tours on an (n+2) X (n+2) board summed over all starting positions.

Terms

    a(0) =16a(1) =1280a(2) =21664a(3) =118480a(4) =372384a(5) =847520a(6) =1584576a(7) =2596480a(8) =3879696a(9) =5424848a(10) =7224912a(11) =9277856a(12) =11583680a(13) =14142384a(14) =16953968a(15) =20018432a(16) =23335776a(17) =26906000a(18) =30729104a(19) =34805088a(20) =39133952a(21) =43715696a(22) =48550320a(23) =53637824a(24) =58978208a(25) =64571472

External references