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A021256
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Decimal expansion of 1/252.
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0
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0, 0, 3, 9, 6, 8, 2, 5, 3, 9, 6, 8, 2, 5, 3, 9, 6, 8, 2, 5, 3, 9, 6, 8, 2, 5, 3, 9, 6, 8, 2, 5, 3, 9, 6, 8, 2, 5, 3, 9, 6, 8, 2, 5, 3, 9, 6, 8, 2, 5, 3, 9, 6, 8, 2, 5, 3, 9, 6, 8, 2, 5, 3, 9, 6, 8, 2, 5, 3, 9, 6, 8, 2, 5, 3, 9, 6, 8, 2, 5, 3, 9, 6, 8, 2, 5, 3, 9, 6, 8, 2, 5, 3, 9, 6, 8, 2, 5, 3
(list; constant; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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COMMENTS
| Multiplied by -1, this is zeta(-5), where zeta is the Riemann zeta function. - Alonso del Arte, Jan 13 2012
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FORMULA
| a(n)=(1/30)*{41*(n mod 6)+[(n+1) mod 6]+26*[(n+2) mod 6]-19*[(n+3) mod 6]+21*[(n+4) mod 6]-4*[(n+5) mod 6]}-2*[C(2*n,n) mod 2]-5*{C[(n+1)^2,n+3] mod 2}, with n>=0 [From Paolo P. Lava (paoloplava(AT)gmail.com), Oct 05 2009]
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MATHEMATICA
| RealDigits[1/252, 10, 100][[1]] (* Alonso del Arte, Jan 13 2012 *)
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CROSSREFS
| Sequence in context: A153416 A205557 A193078 * A199738 A189272 A131954
Adjacent sequences: A021253 A021254 A021255 * A021257 A021258 A021259
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KEYWORD
| nonn,cons
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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