Cast on with Color A and purl one row.
Repeat Rows 1 - 8
Row #SideColorBegin RowRepeatRepeat From *End Row
1RBk1*sl 1 wyib, k3*sl 1, k1
2WBk1*sl 1 wyif, k1, k1 wrapping yarn 3 times, k1*sl1, k1
3RAk3*sl 1 wyib dropping extra wraps, k3* 
4WAp3*sl 1 wyib, p3* 
5RAk3*sl 1 wyib, k3* 
6WAp3*sl 1 wyib, p3* 
7RAk3*sl 1 wyib, k3* 
8WAp3*sl 1 wyib, p3* 
Row: 8  
  Row: 7
Row: 6  
  Row: 5
Row: 4  
  Row: 3
Row: 2  
  Row: 1