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