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

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

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

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

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