Identify the incorrect letter in this unusual sequence?

Question

Here's a curious sequence of letters:

H H H E L I P O A
L S C S E C S A C

But one of the letters is wrong! Can you figure out which letter is wrong, and what the sequence represents?

(note: two lines used for sequence are simply for the sake of keeping it neat, the newline is not part of the puzzle)

$\begingroup$ Looked like the periodic table elements :( $\endgroup$
– thepace
Commented May 8, 2015 at 15:25 — thepace, Commented May 8, 2015 at 15:25

tfitzger · Accepted Answer · 2015-05-08 15:32:44Z

6

The answer is:

P should be B.

The sequence represents

The periodic table overlayed with the Fibonacci sequence. H = 1, H = 1, He = 2, Li = 3, B = 5, O = 8, Al = 13...

answered May 8, 2015 at 15:32

tfitzger

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$\begingroup$ @mmking That got me for a bit until I realized the line wrapped around. $\endgroup$
– tfitzger
Commented May 8, 2015 at 15:36
$\begingroup$ Damn it I was so close! $\endgroup$
– Daedric
Commented May 8, 2015 at 15:40
1

$\begingroup$ Well done. And @tfitzger, I didn't explicitly put the newline in to cause that confusion, but I certainly welcomed it - it made it just a little harder to spot the pattern. $\endgroup$
– Glen O
Commented May 8, 2015 at 15:47
$\begingroup$ @GlenO I figured as such. $\endgroup$
– tfitzger
Commented May 8, 2015 at 15:51

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