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