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

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

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

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

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