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