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

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

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

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

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