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