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