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