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A026918
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Sum{T(n-k,k)}, 0<=k<=[ n/2 ], T given by A026907.
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0
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1, 13, 41, 90, 185, 335, 601, 1020, 1729, 2857, 4721, 7710, 12593, 20459, 33241, 53880, 87337, 141421, 229001, 370650, 599921, 970823, 1571041, 2542140, 4113505, 6655945, 10769801, 17426070, 28196249, 45622667
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