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

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

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

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

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