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Search: id:A097362
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| A097362 |
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a(n) = (n+1)/2 if n is odd, n+2 otherwise. |
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+0
2
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| 1, 4, 2, 6, 3, 8, 4, 10, 5, 12, 6, 14, 7, 16, 8, 18, 9, 20, 10, 22, 11, 24, 12, 26, 13, 28, 14, 30, 15, 32, 16, 34, 17, 36, 18, 38, 19, 40, 20, 42, 21, 44, 22, 46, 23, 48, 24, 50, 25, 52, 26, 54, 27, 56, 28, 58, 29, 60, 30, 62, 31, 64, 32, 66, 33, 68, 34, 70, 35, 72, 36, 74, 37
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OFFSET
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1,2
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COMMENT
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May be regarded as table T(n,j) for j=1 to 2, where T(n,1)=n, T(n,2)=2*n+2 T(n,1)=number of carbon atoms in alcane hydrocarbons C_n H_{2n+2}, T(n,2)=number of hydrogene atoms in alcane hydrocarbons C_nH_{2n+2}.
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MATHEMATICA
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a[n_] := If[OddQ[n], (n + 1)/2, n + 2]; Table[a[n], {n, 1, 100}] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), May 13 2006
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CROSSREFS
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Cf. A065423.
Sequence in context: A019719 A016694 A035505 this_sequence A129131 A097467 A092205
Adjacent sequences: A097359 A097360 A097361 this_sequence A097363 A097364 A097365
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KEYWORD
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easy,nonn
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AUTHOR
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Pierre CAMI (pierrecami(AT)tele2.fr), Sep 18 2004
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EXTENSIONS
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More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), May 13 2006
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