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