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

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

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

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

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