(0 19 17)(1 7 5)(2 12 4)(3 16 8)(6 14 9)(10 20 11)(13 18 15)
ALLOWS (11/8)-SEQUENCE
1: (3 8 16)

(0 19 17)(1 7 5)(2 12 4)(3 8 16)(6 14 9)(10 20 11)(13 18 15)
2: (2 12 4)

(0 19 17)(1 7 5)(2)(3 8 16)(4)(6 14 9)(10 20 11)(12)(13 18 15)
3: (3 8 16)

(0 19 17)(1 7 5)(2)(3)(4)(6 14 9)(8)(10 20 11)(12)(13 18 15)(16)
4: (6 14 9)

(0 19 17)(1 7 5)(2)(3)(4)(6)(8)(9)(10 20 11)(12)(13 18 15)(14)(16)