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

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

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

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

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