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

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

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

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

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