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

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

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

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

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