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

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

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

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

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