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