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A355906
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a(0) = 0; for n >= 1, a(n) = -(3/2)*(a(n-1)+A355905(n-1)).
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2
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0, 0, -3, 3, -6, 9, -15, 21, -33, 48, -75, 111, -168, 252, -381, 570, -858, 1287, -1932, 2898, -4350, 6525, -9789, 14682, -22026, 33039, -49560, 74340, -111513, 167268, -250905, 376356, -564537, 846804, -1270209, 1905312, -2857971, 4286955, -6430434, 9645651
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OFFSET
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0,3
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COMMENTS
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When n is odd, a(n) is the largest multiple of 3 whose NST representation has n digits. When n is even, a(n) is the smallest multiple of 3 with that property.
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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