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

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

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

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

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