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Search: id:A133456
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| A133456 |
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Period 18: repeat 3, 3, -5, 0, 3, -1, -3, 0, 7 followed by their negatives. |
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| 3, 3, -5, 0, 3, -1, -3, 0, 7, -3, -3, 5, 0, -3, 1, 3, 0, -7, 3, 3, -5, 0, 3, -1, -3, 0, 7, -3, -3, 5, 0, -3, 1, 3, 0, -7, 3, 3, -5, 0, 3, -1, -3, 0, 7, -3, -3, 5, 0, -3, 1, 3, 0, -7
(list; graph; listen)
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OFFSET
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0,1
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FORMULA
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First differences 1, 4, 7, 2, 2, 5, 4 = A133390.
a(n)=(1/18)*{-10*(n mod 18)+7*[(n+1) mod 18]+3*[(n+2) mod 18]-2*[(n+3) mod 18]-4*[(n+4) mod 18]+3*[(n+5) mod 18]+5*[(n+6) mod 18]-8*[(n+7) mod 18]+10*[(n+9) mod 18]-7*[(n+10) mod 18]-3*[(n+11) mod 18]+2*[(n+12) mod 18]+4*[(n+13) mod 18]-3*[(n+14) mod 18]-5*[(n+15) mod 18]+8*[(n+16) mod 18]} - Paolo P. Lava (ppl(AT)spl.at), Nov 30 2007
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CROSSREFS
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Sequence in context: A118114 A076183 A011445 this_sequence A103786 A067462 A021753
Adjacent sequences: A133453 A133454 A133455 this_sequence A133457 A133458 A133459
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KEYWORD
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sign
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Nov 27 2007
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