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Search: id:A158674
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| A158674 |
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A106833=3,4,9,8,15, mod 9. Period 18:repeat 3,4,0,8,6,3,3,7,0,2,6,6,3,1,0,5,6,0. |
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+0
3
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| 3, 4, 0, 8, 6, 3, 3, 7, 0, 2, 6, 6, 3, 1, 0, 5, 6, 0, 3, 4, 0, 8, 6, 3, 3, 7, 0, 2, 6, 6, 3, 1, 0, 5, 6, 0, 3, 4, 0, 8, 6, 3, 3, 7, 0, 2, 6, 6, 3, 1, 0, 5, 6, 0
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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(Particular order of period 18:repeat 0,0,0,0,1,2,3,3,3,3,4,5,6,6,6,6,7,8; see A004523). From Rydberg-Ritz spectra of hydrogen:see A120070.
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FORMULA
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a(n)=(1/306)*{-44*(n mod 18)+109*[(n+1) mod 18]-10*[(n+2) mod 18]-78*[(n+3) mod 18]+24*[(n+4) mod 18]+41*[(n+5) mod 18]+58*[(n+6) mod 18]+7*[(n+7) mod 18]-61*[(n+8) mod 18]-27*[(n+9) mod 18]+126*[(n+10) mod 18]-61*[(n+11) mod 18]+7*[(n+12) mod 18]+58*[(n+13) mod 18]+41*[(n+14) mod 18]-129*[(n+15) mod 18]+75*[(n+16) mod 18]-10*[(n+17) mod 18]}, with n>=0 [From Paolo P. Lava (ppl(AT)spl.at), Mar 27 2009]
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CROSSREFS
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Sequence in context: A092894 A011338 A049251 this_sequence A056862 A113035 A099447
Adjacent sequences: A158671 A158672 A158673 this_sequence A158675 A158676 A158677
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KEYWORD
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nonn,uned
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Mar 24 2009
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