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

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

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

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

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