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

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

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

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

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