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

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

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

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

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