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

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

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

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

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