The Electronic Journal of Combinatorics

Volume 20 Issue 4 Paper #P11 — Comment by the Authors

May 14, 2015

Alan Schwenk points out that the assertion in the last line of Section 2 is not correct, and that the construction gives slightly smaller counterexamples than the assertion implies (of order as small as 205, as opposed to 246).  He also suggests a modification of the construction that gets the order down to 106.