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