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