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