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

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

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

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

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