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

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

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

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

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