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