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

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

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

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

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