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