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

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

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

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

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