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