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