No, and in know of no other 5+A for any other die number for 1867.
As Nick says above
would seem to be totally correct, with the addition that all other die 23 seem to be the normal 4+A.
Regarding linkage, it varies between years and denominations. Most pairings seem to be consistent for die number, but I do have, for example, two 1868 sixpences with die number 2, but one is Davies pair 2+A and the other is 3+A. As I say above, a press operator could always change just one die in the case of damage, for example, and thus lose consistency.
Just ripe for full research and publication, as I also say above!