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