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

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

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

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

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