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

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

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

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

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