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A101857
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Number of possibly-self-intersecting walks that it is possible for an accelerating ant to produce with n steps (rotations & reflections not included). On step 1 the ant moves forward 1 unit, then turns left or right and proceeds 2 units, then turns left or right until at the end of its n-th step it arrives back at its starting place.
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1
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0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 16, 28, 0, 0, 0, 0, 0, 0, 1190, 2108, 0, 0, 0, 0, 0, 0
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