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

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

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

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

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