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

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

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

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

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