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

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

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

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

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