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

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

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

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

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