A329370 Number of semi-magic (only long lines are magic) knight's tours on a 4 X 2n board.

0, 0, 16, 136, 3102, 58356, 1092618

Offset: 1

Author

Awani Kumar, Nov 12 2019

Keywords

• nonn
• more

Examples

			Example 4 X 10 semi-magic knight's tour (only long lines are magic, Magic Constant is 205):
   1 22  3 40 17 34  9 30 13 36
   4 25 20 27  8 29 16 35 10 31
  21  2 23  6 39 18 33 12 37 14
  24  5 26 19 28  7 38 15 32 11
		

Links

• G. P. Jelliss, Semi-magic Knight's Tours
• Awani Kumar, Studies in Tours of Knight on Rectangular Boards, arXiv:1802.09340 [math.GM], 2018.

Crossrefs

Cf. A328816.