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

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

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

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

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