(0 21 4)(1 18 2)(3 7 5)(6 19 16 13 8)(9 15 11)(10 14 12)(17 22 20)
ALLOWS (11/8)-SEQUENCE
1: (2 15 18)

(0 21 4)(1 18 11 9 15)(2)(3 7 5)(6 19 16 13 8)(10 14 12)(17 22 20)
2: (13 19 16)

(0 21 4)(1 18 11 9 15)(2)(3 7 5)(6 19 8)(10 14 12)(13)(16)(17 22 20)
3: (1 18 11)

(0 21 4)(1 9 15)(2)(3 7 5)(6 19 8)(10 14 12)(11)(13)(16)(17 22 20)(18)
4: (10 14 12)

(0 21 4)(1 9 15)(2)(3 7 5)(6 19 8)(10)(11)(12)(13)(14)(16)(17 22 20)(18)