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Search: id:A083673
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| A083673 |
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First differences have period 6: 2,-1,3,4,-3,7, 2,-1,3,4,-3,7, 2,-1,... |
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+0
1
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| 2, 4, 3, 6, 10, 7, 14, 16, 15, 18, 22, 19, 26, 28, 27, 30, 34, 31, 38, 40, 39, 42, 46, 43, 50, 52, 51, 54, 58, 55, 62, 64, 63, 66, 70, 67, 74, 76, 75, 78, 82, 79, 86, 88, 87, 90, 94, 91, 98, 100, 99, 102, 106, 103, 110, 112, 111, 114, 118, 115, 122, 124, 123, 126, 130, 127, 134, 136
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Note: not all quizzes permit the use of the OEIS!
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LINKS
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C. P. Simoes, Teste de Desempenho Mental.
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FORMULA
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a(n+6) = a(n) + 12.
a(n)=-5+Sum_{k=0..n}{(1/30)*(-46*(k mod 6)+39*((k+1) mod 6)-((k+2) mod 6)-16*((k+3) mod 6)+19*((k+4) mod 6)+29*((k+5) mod 6)} - Paolo P. Lava (ppl(AT)spl.at), Aug 29 2007
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CROSSREFS
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Sequence in context: A075383 A113233 A051849 this_sequence A131388 A131393 A002326
Adjacent sequences: A083670 A083671 A083672 this_sequence A083674 A083675 A083676
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KEYWORD
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nonn,easy
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Jun 15 2003
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