5, 7, and 9 copoptimal magic

A generator which is poptimal for 5, 7, and 9 limit magic is
2^(84/265). The 41-et major third is between the ranges for 5, 7, and
9, and that for 11, and just a hair under the 11 unless it is, in
fact, poptimal. That puts it in pretty much the same position for
magic as 72 is for miracle, but 265-equal seems like an interesting
alternative.