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

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

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

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

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