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

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

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

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

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