Number of 3-step one or two space at a time rook's tours on an n X n board summed over all starting positions.
A187288
Number of 3-step one or two space at a time rook's tours on an n X n board summed over all starting positions.
Terms
- a(0) =0a(1) =8a(2) =108a(3) =328a(4) =672a(5) =1128a(6) =1696a(7) =2376a(8) =3168a(9) =4072a(10) =5088a(11) =6216a(12) =7456a(13) =8808a(14) =10272a(15) =11848a(16) =13536a(17) =15336a(18) =17248a(19) =19272a(20) =21408a(21) =23656a(22) =26016a(23) =28488a(24) =31072a(25) =33768a(26) =36576a(27) =39496a(28) =42528a(29) =45672
External references
- oeis: A187288