1/1 RC worked without cable needle as follows: K2tog, leave on LN; knit the first of those sts again before slipping all from needle. Alternatively, knit second st on LN, then 1st st before slipping all from needle. 1/1/ LC worked without cable needle as follows: sl2 knitwise, return to LN, knit 2d st tbl, then both sts tog tbl before slipping from needle.
Shown with a cast-on count of 23 stitches.