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A055934
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a(0) = 1; a(n) = sum of a(j)'s, j<n, where n is divisible by a(j).
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2
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1, 1, 2, 2, 6, 2, 14, 2, 10, 2, 22, 2, 20, 2, 30, 2, 18, 2, 44, 2, 52, 2, 46, 2, 32, 2, 28, 2, 72, 2, 78, 2, 66, 2, 36, 2, 98, 2, 40, 2, 112, 2, 64, 2, 112, 2, 94, 2, 56, 2, 62, 2, 106, 2, 80, 2, 156, 2, 60, 2, 188, 2, 126, 2, 162, 2, 162, 2, 70, 2, 166, 2, 206, 2, 76, 2, 154, 2, 164, 2
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OFFSET
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0,3
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COMMENTS
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a(2j+1) = 2 for j > 0; a(j) is even for j > 1.
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LINKS
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EXAMPLE
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a(10) =22 because a(0), a(1), a(2), a(3), a(5), a(7), a(8) and a(9) all divide 10 and a(0) +a(1) +a(2) +a(3) +a(5) +a(7) +a(8) +a(9) = 1 + 1 +2 +2 +2 +2 + 10 +2 =22.
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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STATUS
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approved
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