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

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

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

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

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