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

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

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

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

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