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