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