Triangle T(n,k), n >= 2, 0 <= k <= floor(n^2/2)-n, read by rows, where T(n,k) is the number of 2*(k+n)-cycles in the n X n grid graph which pass through NW and SW corners.
A333652
Triangle T(n,k), n >= 2, 0 <= k <= floor(n^2/2)-n, read by rows, where T(n,k) is the number of 2*(k+n)-cycles in the n X n grid graph which pass through NW and SW corners.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =1a(4) =6a(5) =17a(6) =17a(7) =6a(8) =1a(9) =10a(10) =45a(11) =167a(12) =404a(13) =570a(14) =460a(15) =186a(16) =1a(17) =15a(18) =100a(19) =506a(20) =2164a(21) =7726a(22) =20483a(23) =39401a(24) =56015a(25) =57632a(26) =37450a(27) =10340a(28) =1072a(29) =1
External references
- oeis: A333652