Clarification on Chemical Formulas

[Robotesco]

I was wondering what the upper half of the hexagon represents, I assume the Triangles represent O repeating; and how would this formula be written out in text.

 

[Borek]

I don't see hexagons here?

These zig-zagged lines are just carbon chains (with hydrogen omitted for clarity). Single line means single bond, double line means double bond.

 

[Robotesco]

I don't see hexagons here?

These zig-zagged lines are just carbon chains (with hydrogen omitted for clarity). Single line means single bond, double line means double bond.

Any idea on how the chemical formula would be written out?
How many carbon atoms do the zigzags represent after the Oxygen atom?

 

[Borek]

Each vertex is a carbon atom.

https://en.wikipedia.org/wiki/Skeletal_formula

 

[SteamKing]

How many carbon atoms do the zigzags represent after the Oxygen atom?

Count 'em up.

I count 16 C atoms in the topmost branch, starting where the O has a double-bond. (Don't forget the C at the end of the chain!)