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