(0 21 3)(1 4 2)(5 8 6)(7 17 13 11 9)(10 15 12)(14 19 16)(18 22 20)
ALLOWS (11/8)-SEQUENCE
1: (5 8 15)
(0 21 3)(1 4 2)(5 12 10 15 6)(7 17 13 11 9)(8)(14 19 16)(18 22 20)
2: (7 17 13)
(0 21 3)(1 4 2)(5 12 10 15 6)(7 11 9)(8)(13)(14 19 16)(17)(18 22 20)
3: (14 19 16)
(0 21 3)(1 4 2)(5 12 10 15 6)(7 11 9)(8)(13)(14)(16)(17)(18 22 20)(19)
4: (6 10 15)
(0 21 3)(1 4 2)(5 12 10)(6)(7 11 9)(8)(13)(14)(15)(16)(17)(18 22 20)(19)