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