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