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Search: id:A111625
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| A111625 |
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n divided by the second lower diagonal of A109626 & 3/2 -> 2. |
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+0
1
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| 3, 1, 1, 3, 1, 1, 3, 1, 1, 2, 1, 1, 3, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 3, 1, 1, 3, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 3, 1, 1, 3, 1, 1, 3, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 2, 1, 1, 3, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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A sequence of just 1's, 2's and 3's.
a/A111624(n)=1 if n == 0,2 (Mod 3).
a(3n-2): 3,3,3,2,3,2,2,1,3,3,1,2,2,3,3,3,1,2,2,1,1,3,2,1,1,2,3,1,1,3,2,3,2,2,1,2,3,2,2,2,3,3,3,3,2,1,1,3
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MATHEMATICA
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f[n_] := f[n] = Block[{a}, a[0] = 1; a[l_] := a[l] = Block[{k = 1, s = Sum[ a[i]*x^i, {i, 0, l - 1}]}, While[ IntegerQ[ Last[ CoefficientList[ Series[(s + k*x^l)^(1/n), {x, 0, l}], x]]] != True, k++ ]; k]; Table[ a[j], {j, 0, 144}]]; g[n_, m_] := f[n][[m]]; Table[ Ceiling[ n/g[n, n - 2]], {n, 3, 108}]
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CROSSREFS
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Cf. A111624.
Sequence in context: A090623 A098094 A087283 this_sequence A109007 A132951 A101685
Adjacent sequences: A111622 A111623 A111624 this_sequence A111626 A111627 A111628
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KEYWORD
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nonn
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AUTHOR
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Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 03 2005
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