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A093657
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2^(n-1)-th term of the row sums of triangle A093654.
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2
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1, 2, 6, 28, 206, 2418, 45970, 1440746, 75840096, 6828414424, 1069361760254, 295609883371824, 146078092162147126, 130419475982163166640, 212257994312591826735888, 634463537260289571176650942
(list; graph; refs; listen; history; internal format)
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