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Arranging numbers in a row (
Posted on 20081120
)
How many numbers, from 1 to 50 (both included) can you arrange in a row (one of each) so that each one, except the first and the last, is the sum or difference of its two neighbours?
Example: 3, 10, 7, 17, 24, 41.
10 = 3+7, 7 = 1710, 17 = 247, 24 = 4117.
Submitted by
pcbouhid
Rating:
2.3333
(3 votes)
Solution:
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See Charlieīs solution:
here.
See Gamerīs analysis:
here.
Comments: (
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Subject
Author
Date
Answer
K Sengupta
20090107 12:03:03
re: With numbers all in a row (noncomputer solution)
pcbouhid
20081122 07:22:48
With numbers all in a row (noncomputer solution)
Gamer
20081122 04:22:39
re(2): Re Charlie's / reply
ed bottemiller
20081121 11:31:33
re(3): computer solution  can you check, please?
pcbouhid
20081121 08:04:59
re(2): computer solution  can you check, please?
Charlie
20081121 00:56:17
re: Re Charlie's
Charlie
20081121 00:53:11
re: computer solution  can you check, please?
pcbouhid
20081120 21:30:12
Re Charlie's
ed bottemiller
20081120 18:10:48
Fibonacci plus
ed bottemiller
20081120 17:58:29
computer solution
Charlie
20081120 17:21:55
1st trial
Ady TZIDON
20081120 11:38:46
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