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A094667
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Number of (s(0), s(1), ..., s(2n+1)) such that 0 < s(i) < 10 and |s(i) - s(i-1)| = 1 for i = 1,2,....,2n+1, s(0) = 1, s(2n+1) = 4.
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0
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1, 4, 14, 48, 165, 572, 2001, 7056, 25042, 89320, 319793, 1148184, 4131009, 14885468, 53697270, 193862592, 700312381, 2530902676, 9149426897, 33083393640, 119645675898, 432748165304, 1565346866889, 5662560013488
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