Question

Look at the following row of numbers:
10 15 21 4 5

They are arranged so that each pair of adjacent numbers adds up to a square number:
10+15=25 15+21=36 21+4=25 4+5=9

i) Can you arrange the numbers 1 to 17 in a row in the same way, so that each adjacent pair adds up to a square number?

ii) Can you arrange them in more than one way? If not, can you justify that your solution is unique?

Answer 1

Answer:

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