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

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

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

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

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