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

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

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

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

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