A289849 Cardinality of the maximal set of ordered factor pairs such that a Quasi-Factor Pair Latin Square of order n exists.

1, 2, 2, 3, 2, 4, 2, 4, 3, 4, 2, 5, 2, 4, 4, 5, 2, 6, 2, 5, 4, 4, 2, 6, 3, 4, 4, 5, 2

Offset: 1

Author

Leah S. Miller, Jordan Lenchitz, Makkah Davis, Bob Kuo, Boyang Su, James Hammer, Jul 13 2017

Keywords

• nonn
• hard
• more

Comments

For n a prime power or twice a prime, a(n) is known to coincide with A000005(n).

Links

• James Hammer, Factor Pair Latin Squares, Dissertation, Auburn University, 2015.

Crossrefs

Cf. A000005.