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