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

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

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

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

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