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

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

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

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

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