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