1 + 4 + 16 + 25 + 36 + 49 = 131
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The perfect squares in the range are 25, 36 and 49.
The median is the middle of the list (when sorted). In this case 16. The sorted list is:1, 4, 9, 16, 25, 36, 49.
.... 49, 36, 25, 16, 9, 4 and 1
0, 1, 4, 9, 16, 25, 36, 49, 64
36
The perfect squares in the range are 25, 36 and 49.
The median is the middle of the list (when sorted). In this case 16. The sorted list is:1, 4, 9, 16, 25, 36, 49.
.... 49, 36, 25, 16, 9, 4 and 1
0, 1, 4, 9, 16, 25, 36, 49, 64
36
They are 25 and 49
It is: 49 because 7*7 = 49
t(n) = n2
Take your choice from: 16, 25, 36 and 49
1, 4, 9, 16, 25, 36, 49
1, 4, 9, 16, 25, 36, 49
25, 36, 49 . . . these are the squared numbers