[r-t] Ben Constant's Yorkshire Royal

[Matthew Frye]

> There are a lot of magic block peals. For each basic composition the magic
> blocks link 10 B-blocks into 5 blocks, leaving 84-5 = 79 blocks in total.
> These blocks are then linked with 39 (or more) Q-sets of omits. Each of
> these Q-sets can usually be done in 3 ways as there are two places where
> the same front bells and same back 3 bells come up (omit 6 bobs, or omit 
> one
> set of 3 or another set of 3). That gives roughly 3**39 arrangements.
> 3**39 is 4,052,555,153,018,976,267. You've then got 840 
> rotations/reversals,
> giving 3,404,146,328,535,940,064,280. At 3 hours per peal 85,000 peal
> bands could have been ringing different bobs-only Stedman Triples peals
> since the Big Bang, 13.7 thousand million years ago, without repeats!
> 
> Andrew Johnson

But out of those 3.4 x 10^21, how many would you say do not yet exist?

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