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