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

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

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

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

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