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

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

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

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

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