Vertical Crochet Zigzags Pattern
The quantity of sts is multiple 16 + 1 chain st increase.
1st row: 3 chain sts increase, 2 unfinished double crochets together in 2 chain sts, 1 chain st, skip 1 chain st, 1 double crochet in the next chain st, 1 chain st, skip 1 chain st, 1 double crochet in the next chain st, 1 chain st, skip 1 chain st, * 5 double crochets in the next chain st, 1 chain st, skip 1 chain st, 1 double crochet in the next chain st, 1 chain st, skip 1 chain st, 5 unfinished double crochets together in the next 5 chain sts, 1 chain st, skip 1 chain st, 2 x 1 double crochet in the next chain st and 1 chain st, skip 1 chain st*; repeat from * to *, 5 double crochets in the next chain st, 2 x 1 chain st, skip 1 chain st, 1 double crochet in the next chain st, 1 chain st, skip 1 chain st, 3 unfinished double crochets together in the last 3 chain sts;
2nd row: 1 chain st increase, 1 single crochet in every double crochet and every chain st.
3rd row: 3 chain sts increase, 2 unfinished double crochets together in the 2nd and 3rd single crochets of the previous row, 1 double crochet in the next 5 double crochets, * 5 double crochets in the next single crochet, 1 double crochet in the next 5 single crochets, 5 unfinished double crochets together in the next 5 single crochets, 1 double crochet in the next 5 single crochets*; repeat from * to *, 5 double crochets in the next single crochet, 1 single crochet in the next 5 single crochets, 3 unfinished double crochets together in the last 3 single crochets;
4th row: 1 chain st increase, 1 single crochet in every double crochet;
5th row: as the 1st row, but skip single crochets and make sts in single crochets.
Repeat 2nd-5th rows.