(0 11 2)(1 5 3)(4 9 7)(6 15 13 10 8)(12 21 20 17 14)(16 19 18)
ALLOWS (11/8)-SEQUENCE
1: (1 5 8)
(0 11 2)(1 6 15 13 10 8 3)(4 9 7)(5)(12 21 20 17 14)(16 19 18)
2: (4 9 7)
(0 11 2)(1 6 15 13 10 8 3)(4)(5)(7)(9)(12 21 20 17 14)(16 19 18)
3: (3 15 8)
(0 11 2)(1 6 15)(3)(4)(5)(7)(8 13 10)(9)(12 21 20 17 14)(16 19 18)
4: (0 11 2)
(0)(1 6 15)(2)(3)(4)(5)(7)(8 13 10)(9)(11)(12 21 20 17 14)(16 19 18)