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

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

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

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

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