4
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What numbers are next in this sequence and why?

2, 4, 6, 8, 10, 11, 10, 10, 9, 14, 9, 10, 14, 14, 15, 16, 18 ....

Hint:

square numbers are involved

Hint 2:

LCD display

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2
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Is it:

the number of segments in a 7 segment LCD display that light up for $n^2$? 1 = 2, 4 = 4, 9 = 6, 16 = 8, 25 = 10, 36 = 11, etc...

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  • $\begingroup$ congrats, that's it! $\endgroup$ – ThomasL Sep 9 '19 at 17:50

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