[r-t] Periodic table and chemical elements methods

Philip Saddleton pabs at cantab.net
Wed Aug 20 22:17:58 UTC 2008

Philip Earis wrote:
> Thinking more generally, can someone answer this question: how many
> possible treble-dodging major overworks (and hence underworks) are there?
> (treble only dodging once in each place)
> An interesting sub-question is: how many "regular" treble-dodging major
> overwork grids are there? I really dislike terms like "regular", but here
> I'm using it to mean no more than two consecutive blows, no places in 7ths
> above the treble, and no more than three adjacent places in any change.
I make it 2408 assuming you are excluding the lead head (see spreadsheet)

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