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A106841
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Numbers such that n, n+1 and n+2 have odd part of form 4k+1.
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2
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8, 16, 32, 40, 64, 72, 80, 104, 128, 136, 144, 160, 168, 200, 208, 232, 256, 264, 272, 288, 296, 320, 328, 336, 360, 392, 400, 416, 424, 456, 464, 488, 512, 520, 528, 544, 552, 576, 584, 592, 616, 640, 648, 656, 672, 680, 712, 720, 744, 776, 784, 800, 808
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Either of form 2a(m) or 32k+8, k>=0,0<m<n.
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EXAMPLE
| 40/8=5 is 1 mod 4 and so is 41 and 42/2=21, thus 40 is in sequence.
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MATHEMATICA
| opn[n_]:=n/2^IntegerExponent[n, 2]; Transpose[Select[Partition[Range[ 1000], 3, 1], Mod[opn/@#, 4]=={1, 1, 1}&]][[1]] (* From Harvey P. Dale, May 15 2011 *)
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CROSSREFS
| Cf. A091072, A106840, A106838.
Equals 8 * A091072.
Sequence in context: A047925 A018922 A020948 * A139598 A137243 A068935
Adjacent sequences: A106838 A106839 A106840 * A106842 A106843 A106844
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KEYWORD
| nonn
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AUTHOR
| Ralf Stephan, May 03 2005
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