Where do I go from here?

[albertagirl2010]

Hello fellow knitters,

I've recently bought a pattern for an afghan done using the entrelac method. Very pretty but I'm stuck at the base triangle row where the instruction reads Row1-K2; turn, Row2-Sl 1 purl wise, p1; turn and so on until the last two rows, Row22-Sl 1 purl wise, p11; turn, Row23-Sl 1 purl wise, K13. To continue making the rest of the triangles, the instructions are to repeat Rows 2-22, 10 times and Rows 2-21 once more. My question is regarding whether or not I should be repeating Row 23 (although the printed instruction does not indicate this) or if I'm simply misunderstanding things (which is highly likely).