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