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A047618
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Numbers that are congruent to {0, 2, 5} mod 8.
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0
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0, 2, 5, 8, 10, 13, 16, 18, 21, 24, 26, 29, 32, 34, 37, 40, 42, 45, 48, 50, 53, 56, 58, 61, 64, 66, 69, 72, 74, 77, 80, 82, 85, 88, 90, 93, 96, 98, 101, 104, 106, 109, 112, 114, 117, 120, 122, 125, 128, 130, 133, 136
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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FORMULA
| a(n) = 3*n - floor(n/3) - (n^2 mod 3), with offset 0..a(0)=0. [From Gary Detlefs, Mar 19 2010]
a(n) = floor(8*(n-1)/3). [From Gary Detlefs, Jan 02 2012]
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MAPLE
| seq(3*n - floor(n/3) - (n^2 mod 3), n=0..51); [From Gary Detlefs (gdetlefs(AT)aol.com), Mar 19 2010]
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CROSSREFS
| Sequence in context: A166955 A121294 A039770 * A059551 A189535 A126281
Adjacent sequences: A047615 A047616 A047617 * A047619 A047620 A047621
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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