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