Forum: Puzzles
2020-08-28, 14:28
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Replies: 6
Views: 3,676
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...
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Forum: Puzzles
2020-07-30, 05:57
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Replies: 6
Views: 3,676
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Forum: Puzzles
2020-07-30, 05:33
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Replies: 6
Views: 3,676
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...
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