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A329370
Number of semi-magic (only long lines are magic) knight's tours on a 4 X 2n board.
2
0, 0, 16, 136, 3102, 58356, 1092618
OFFSET
1,3
LINKS
EXAMPLE
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
CROSSREFS
Cf. A328816.
Sequence in context: A341227 A022581 A278283 * A351698 A114182 A280601
KEYWORD
nonn,more
AUTHOR
Awani Kumar, Nov 12 2019
STATUS
approved