I knitted using an 2 fold thread.

126 stitches for toddler/child size
140 sts for adult size.

So, cast on 126 sts, work in round.
Row 1 k8, s2k, k1, p2sso, k7
Row 2 p7, s2k, k1, p2sso, p6
Row 3 k6, s2k, k1, p2sso, k5
Row 4 p5, s2k, k1, p2sso, p4
Row 5 knit
Row 6 k1, yo, k3. (S2k, k1, p2sso), k3, yo repeat
Row 7 knit
Row8 k2, yo, k2 (pattern), k2, yo, k1
Row9 knit
Row 10 k3, yo,k1 (pattern), k1, yo, k2
Row 11 knit
Row 12 k4, yo, k0, (pattern), k0, yo, k3
Row 13 knit
Row 14 knit
Row 15 purl
Row16 knit
Row17 purl
Row 18 k2, yo, k2tog
Row 19 knit
Row20 cast off purl wise