Cast on 30 sts. 1st row: P 10, k 2, p 6, k 2, p 10. 2nd row: K across. 3rd to 7th rows incl: Repeat 1st and 2nd rows alternately. 8th row: K 12, then make a cable (to make a cable, slip off next 3 sts on a stitch holder; keeping the stitch holder in back of work, k the next 3 sts, then k the 3 sts on stitch holder), k 12. Repeat these 8 rows.
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