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