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

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

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

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

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