Number of 5-step self-avoiding walks on an n X n X n cube summed over all starting positions.

Terms

a(0) =0a(1) =144a(2) =3240a(3) =14256a(4) =37470a(5) =77184a(6) =137754a(7) =223536a(8) =338886a(9) =488160a(10) =675714a(11) =905904a(12) =1183086a(13) =1511616a(14) =1895850a(15) =2340144a(16) =2848854a(17) =3426336a(18) =4076946a(19) =4805040a(20) =5614974a(21) =6511104a(22) =7497786a(23) =8579376a(24) =9760230a(25) =11044704a(26) =12437154a(27) =13941936a(28) =15563406