# Identify the incorrect letter in this unusual sequence?

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)

• Looked like the periodic table elements :( – thepace May 8 '15 at 15:25

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...

• @mmking That got me for a bit until I realized the line wrapped around. – tfitzger May 8 '15 at 15:36
• Damn it I was so close! – Daedric May 8 '15 at 15:40
• 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. – Glen O May 8 '15 at 15:47
• @GlenO I figured as such. – tfitzger May 8 '15 at 15:51