Crochet Stripes of Weavers Pattern

The quantity of sts is multiple 15.

1^st row: 3 chain sts increase, 2 double crochets in the 3^rd st of the previous row, 2 chain sts, * 2 double crochets in the same st, 3 chain sts, 1 double crochet in the 7^th st of the previous row, 3 chain sts, 1 double crochet in the same st, 3 chain sts, 2 double crochets on the 7^th st of the previous row*; repeat from * to *, 2 chain sts, 2 double crochets in the same st, 1 double crochet in the 2^nd st, turn;

2^nd row: 3 chain sts increase, 2 double crochets in 2 chain sts of the previous row, 2 chain sts, * 2 double crochets in the same sts, 2 chain sts, 6 double crochets in the st of 3 chain sts of the previous row, 2 chain sts*; repeat from * to *, 2 double crochets in the same 2 chain sts, 1 double crochet in chain st increase of the previous row, turn;

3^rd row: 3 chain sts increase, 2 double crochets in 2 chain sts of the previous row, * 2 chain sts, 2 double crochets in the same 2 chain sts of the previous row, 1 double crochet in 1 double crochet of the previous row, 1 chain st, 1 double crochet in 2 double crochets of the previous row, 1 chain st, 1 double crochet in 5 double crochets of the previous row, 1 chain st, 2 double crochets in 2 chain sts of the previous row*; repeat from * to *, 2 chain sts, 2 double crochets in the same 2 chain sts of the previous row, turn;

4^th row: 3 chain sts increase, 2 double crochets in 2 chain sts increase of the previous row, * 2 chain sts, 2 double crochets in the same 2 chain sts, **1 double crochet in 1 chain st of the previous row, 3 chain sts, 1 double crochet in the same chain st of the previous row**; repeat from ** to ** x 4 times in every chain st of the previous row, 2 double crochet in 2 chain sts of the previous row*; repeat from * to *, 2 chain sts, 2 double crochets in the same 2 chain sts of the same row.