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

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

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

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

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