Thank you for your quick response. Below are the copy of the back of the sweater and then the beginning of the sleeves. It’s the first instruction of the sleeves that I wasn’t sure of.
With circular needle, cast on 52(56-58-60) sts. DO NOT join.
Establish Pat St: Row 1 (RS): K11(13-14-15), place marker, work Row 1 of Pat St over 30 sts, place marker, k to end.
Row 2: P to first marker, work Row 2 of Pat St to last marker, p to end. Work even in pat as established until piece measures 7(71⁄2-8-81⁄2)" from beg, end on WS.
Cast on 38(40-43-45) sts at beg of the next 2 rows - 128(136-144-150) sts.