The pattern is an image with words and a chart. The chart was easily understood.

The triangles are in multiples of 9 with 2 ch between them.
For the foundation row, I chained 61 plus 5 chains for the start of row 2.

I could not locate the pattern in Ravelry.
I found this on the following link:

Pattern: Evia2
https://mirincondecrochet.files.wordpress.com/2013/04/evi...

Author: Lorena Elgersma
https://mirincondecrochet.wordpress.com/about/