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