Re^4: How to get this not the usual round robin looping

hmm, OP has H1-> 1,8,9

My reply was addressed to kcott, not the OP, and so I used kcott’s dataset.

imagine the equation which I won't tell you

I thought the same at first, but if you lay out the sequence, the pattern becomes obvious when you read vertically:

{
  H1 => [1, 8,  9],
  H2 => [2, 7, 10],
  H3 => [3, 6],
  H4 => [4, 5]
}
[download]

Discipulus, in the Chatterbox, identified it as an example of Boustrophedon, which seems like a pretty good description. :-)

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Re^5: How to get this not the usual round robin looping by Anonymous Monk on Oct 13, 2015 at 07:30 UTC
Ah, see that is the kind of crucial detail the homework would have specified .... my version came out like :) `{ H1 => [1, 8, 9], H2 => [2, 7, 10], H3 => [3, 6, 11], H4 => [4, 5, 12], H5 => [13, 20, 21], }` [download]	[reply] [d/l]