Pattern Confusion

[Jazz86]

I am confused by the 2nd and 4th rows of this pattern.
 

1st row: (RS). Ch 1. Work 34 sc across long edge of neck ribbing. Turn.

2nd row: Ch 3 (counts as dc). *1 sc in next st. 1 dc in next st. Rep from * to last st. 1 sc in last st.
 

3rd row: Ch 1. (1 sc. 1 dc) in first sc (inc made). *1 sc in next dc. 1 dc in next sc. Rep from * ending with (1 sc. 1 dc) in top of turning ch 3 (inc made). Turn.

4th row: Ch 3 (counts as dc). 1 sc in first dc (inc made). *1 dc in next sc. 1 sc in next dc. Rep from * ending with (1 dc. 1 sc) in last sc (inc made). Turn.
Rep last 2 rows 1 time more. 42 sts.

 

If there’s 34 sts, the second to last will be an sc on the 2nd row, which means ending with 2 scs. That seems wrong since it seems like it should always alternate dc and sc? 

Also, the 4th row instructions indicate that one sc in the dc means an increase was made. But I don’t understand how 1 sc means an increase?

Appreciate any help making sense of this! 

Edited January 1 by Jazz86

[bgs]

I believe the pattern is correct and the confusion lies in where the first stitch is worked depending on if its single crochet or double crochet.  Reviewing this might help.

https://www.edieeckman.com/2019/08/28/where-to-put-the-first-stitch-of-a-crochet-row/

 

[Jazz86]

Thanks for your response and that link. It makes sense now!