Work an odd number of chains, plus 3.
Row 1. Dc in 4th ch from hook and each ch across.
Row 2. Ch 2; turn. Dc in first dc, fpdc around next dc, *bpdc
around next dc, fpdc around next dc, rep from * across to last
dc; dc in last dc.
Row 3. Ch 2; turn. Dc in first dc, bpdc around next dc, *fpdc
around next dc, bpdc around next dc, rep from * across to last
dc; dc in last dc.
Repeat rows 2 & 3 throughout.