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A104647
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a(n) = a(n-1) mod n + a(n-2) mod n; a(0) = 0, a(1) = 1.
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9
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0, 1, 1, 2, 3, 5, 8, 6, 6, 12, 8, 9, 17, 13, 16, 14, 14, 28, 24, 14, 18, 32, 28, 14, 18, 32, 24, 29, 25, 25, 50, 44, 30, 41, 37, 8, 9, 17, 26, 43, 29, 31, 60, 48, 20, 23, 43, 66, 61, 29, 40, 69, 57, 20, 23, 43, 66, 52, 60, 53, 53, 106, 97, 77, 46, 58, 104, 95, 63, 89, 82, 29, 39, 68
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OFFSET
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0,4
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COMMENTS
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a(n) <= a(n-1) + a(n-2) < 2*n for n>0, see A105859 for numbers i such that a(i)=a(i-1)+a(i-2) and A105860 for numbers j with a(j)<a(j-1)+a(j-2); - Reinhard Zumkeller, Apr 23 2005
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LINKS
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MATHEMATICA
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Fold[Append[#1, Mod[#1[[-1]], #2] + Mod[#1[[-2]], #2]] &, {0, 1}, Range[2, 73]] (* Ivan Neretin, Jun 18 2018 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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