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