This pattern can be adapted to circular knitting by knitting all the even numbered rows.
Repeat rows 1 - 66.
Row #SideBegin RowRepeatRepeat From *End Row
1Rk1, yo, k1, ssk, k2*k2, k2-tog, k2, yo, k1, yo, k1, ssk, k2*k2, k2-tog, k1, yo, k1
2W*purl* 
3Rk2, yo, k1, ssk, k1*k1, k2--tog, k1, yo, k3, yo, k1, ssk, k1*k1, k2-tog, yo, k2
4W*purl* 
5Rk3, yo, k1. ssk*k2-tog, k1, yo, k5, yo, k1, ssk*k2-tog, k1, yo, k3
6W*purl* 
7Rk5, k2-tog*(k1, yo) twice, k1, ssk, k4, k2-tog*(k1, yo) twice, k1, ssk
8W*purl* 
9Rk4, k2-tog, k1*yo, k3, yo, k1, ssk, k1, k2-tog, k1*yo, k5
10W*purl* 
11Rk3, k2-tog, k1, yo*k5, yo, k1, ssk, k2-tog, k1, yo*k6
12W*purl* 
13Rk2, k2-tog, k1, yo, k1*yo, k1, ssk, k4, k2-tog, k1, yo, k1*yo, k1, ssk, k3
14W*purl* 
15Rk1, k2-tog, k1, yo, k2*k1, yo, k1, ssk, k2, k2-tog, k1, yo, k2*k1, yo, k1, ssk, k2
16W*purl* 
17Rk2-tog, k1, yo, k3*k2, yo, k1, ssk, k2-tog, k1, yo, k3*k2, yo, k1, ssk, k1
18W*purl* 
19Rk3, yo, k1, ssk*k4, k2-tog, (k1, yo) twice, k1, ssk*k6
20W*purl* 
21Rk4, yo, k1*ssk, k2, k2-tog, k1, yo, k3, yo, k1*ssk, k5
22W*purl* 
23Rk5, yo*k1, ssk, k2-tog, k1, yo, k5, yo*k1, ssk, k2-tog, k1, yo, k1
24W*purl* 
25Rk6*k1, k2-tog, (k1, yo) twice, k1, ssk, k3*k1, k2-tog, k1, yo, k2
26W*purl* 
27Rk1, yo, k1, ssk, k2*k2-tog, k1, yo, k3, yo, k1, ssk, k2*k2-tog, k1, yo, k3
28W*purl* 
29Rk2, yo, k1, ssk, k2-tog*k1, yo, k5, yo, k1, ssk, k2-tog*k1, yo, k4
30W*purl* 
31Rk4, k2-tog, k1*(yo, k1) twice, ssk, k4, k2-tog, k1*(yo, k1) twice, ssk
32W*purl* 
33Rk3, k2-tog, k1, yo*k3, yo, k1, ssk, k2, k2-tog, k1, yo*k3, yo, k1, ssk
34W*purl* 
35Rk2, k2-tog, k1, yo, k1*k4, yo, k1, ssk, k2-tog, k1, yo, k1*k6
36W*purl* 
37Rk1, k2-tog, (k1, yo) twice*k1, ssk, k4, k2-tog, (k1, yo) twice*k1, ssk, k4
38W*purl* 
39Rk2-tog, k1, yo, k3*yo, k1, ssk, k2, k2-tog, k1, yo, k3*yo, k1, ssk, k3
40W*purl* 
41Rk6*k1, yo, k1, ssk, k2-tog, k1, yo, k4*k1, yo, k1, ssk, k2
42W*purl* 
43Rk2, yo, k1, ssk, k1*k3, k2-tog, (k1, yo) twice, k1, ssk, k1*k6
44W*purl* 
45Rk3, yo, k1, ssk*k2, k2-tog, k1, yo, k3, yo, k1, ssk*k2, k2-tog, k1, yo, k1
46W*purl* 
47Rk4, yo, k1*ssk, k2-tog, k1, yo, k5, yo, k1*ssk, k2-tog, k1, yo, k2
48W*purl* 
49Rk6*k2-tog, (k1, yo) twice, k1, ssk, k4*k2-tog, k1, yo, k3
50W*purl* 
51Rk5, k2-tog*k1, yo, k3, yo, k1, ssk, k2, k2-tog*k1, yo, k4
52W*purl* 
53Rk4, k2-tog, k1*yo, k5, yo, k1, ssk, k2-tog, k1*yo, k5
54W*purl* 
55Rk3, k2-tog, k1, yo*k1, yo, k1, ssk, k4, k2-tog, k1, yo*k1, yo, k1, ssk, k2
56W*purl* 
57Rk2, k2-tog, k1, yo, k1*k2, yo, k1, ssk, k2, k2-tog, k1, yo, k1*k2, yo, k1, ssk, k1
58W*purl* 
59Rk1, k2-tog, k1, yo, k2*k3, yo, k1, ssk, k2-tog, k1, yo, k2*k3, yo, k1, ssk
60W*purl* 
61Rk2-tog, (k1, yo) twice, k1*ssk, k4, k2-tog, (k1, yo) twice, k1*ssk, k5
62W*purl* 
63Rk5, yo*k1, ssk, k2, k2-tog, k1, yo, k3, yo*k1, ssk, k4
64W*purl* 
65Rk6*yo, k1, ssk, k2-tog, k1, yo, k5*yo, k1, ssk, k3
66W*purl* 
Row: 66  
  Row: 65
Row: 64  
  Row: 63
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Row: 58  
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  Row: 1