OFFSET
1,4
COMMENTS
Conjecture: for n >= 12 is a(n) > 0. Proved for n <= 20. - Vaclav Kotesovec, Sep 06 2019
LINKS
Chess variants, Glinski's Hexagonal Chess
Vaclav Kotesovec, Examples for n = 4, 8, 10, 12, 13 and 14
Vaclav Kotesovec, Examples for n = 15, 16, 17, 18, 19 and 20
Wikipedia, Hexagonal chess - GliĆski's hexagonal chess
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Vaclav Kotesovec, Aug 15 2019
EXTENSIONS
a(15) from Vaclav Kotesovec, Aug 28 2019
STATUS
approved