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

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

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

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

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