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Forum: Puzzles 2020-08-28, 14:28
Replies: 6
Views: 3,676
Posted By 0scar
Spin-off solution

The target sequence G(n) = F(n)*F(n+1) satisfies an order-3 homogeneous linear recurrence:
G(n) = 2*G(n-1) + 2*G(n-2) - G(n-3),
so we need a homogeneous linear system of order at least three to...
Forum: Puzzles 2020-07-30, 05:57
Replies: 6
Views: 3,676
Posted By 0scar
As LENGTH(n) grows exponentially, I think that it...

As LENGTH(n) grows exponentially, I think that it makes sense to compute the ratios for n up to 10, or their limits as n grows to infinity (only for the brave)

For my currently best solution,
IBM...
Forum: Puzzles 2020-07-30, 05:33
Replies: 6
Views: 3,676
Posted By 0scar
Spin-off

A friend of mine suggested a nice "spin-off" puzzle.

If you solved July 2020 main problem by using three letters or more,
and your dictionary includes letters "I", "B", and "M",
then how many...
Showing results 1 to 3 of 3

 
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