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

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

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

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

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