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A107410
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Each term is sum of three previous terms mod 9.
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0
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0, 1, 2, 3, 6, 2, 2, 1, 5, 8, 5, 0, 4, 0, 4, 8, 3, 6, 8, 8, 4, 2, 5, 2, 0, 7, 0, 7, 5, 3, 6, 5, 5, 7, 8, 2, 8, 0, 1, 0, 1, 2, 3, 6, 2, 2, 1, 5, 8, 5, 0, 4, 0, 4, 8, 3, 6, 8, 8, 4, 2, 5, 2, 0, 7, 0, 7, 5, 3, 6, 5, 5, 7, 8, 2, 8, 0, 1, 0, 1, 2, 3, 6, 2, 2, 1, 5, 8, 5, 0, 4, 0, 4, 8, 3, 6, 8, 8, 4, 2, 5, 2, 0, 7, 0
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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COMMENTS
| The sequence has period: {0,1,2,3,6,2,2,1,5,8,5,0,4,0,4,8,3,6,8,8,4,2,5,2,0,7,0,7,5,3,6,5,5,7,8,2,8,0,1} of length = 39.
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LINKS
| Index to sequences with linear recurrences with constant coefficients, signature (0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1).
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FORMULA
| a(n)=mod(a(n-1)+a(n-2)+a(n-3), 9); a(1)=0, a(2)=1;a(3)=2.
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MATHEMATICA
| s={a=0, b=1, c=2}; Do[d=Mod[a+b+c, 8]; s=Append[s, d]; a=b; b=c; c=d, {m, 200}]; s
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CROSSREFS
| Sequence in context: A093095 A002171 A138515 * A132041 A153634 A073546
Adjacent sequences: A107407 A107408 A107409 * A107411 A107412 A107413
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KEYWORD
| nonn,easy
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AUTHOR
| Zak Seidov (zakseidov(AT)yahoo.com), May 25 2005
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