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