OFFSET
3,3
LINKS
Donald E Knuth, The Art of Computer Programming, exercises on "knight grids" in Section 7.2.2.3 (preliminary draft)
Don Knuth, CWEB program
EXAMPLE
a(6) = 4 because of the following strict embedding of P4 X P4 into N6:
- - 1 - 3 -
1 - 3 - - - where the vertices of P4 X P4 are
- - 1 2 3 4 1 2 3 4
1 2 3 4 - - 1 2 3 4
- - - 2 - 4 1 2 3 4
- 2 - 4 - - 1 2 3 4
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Don Knuth, Feb 10 2022
STATUS
approved