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