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Search: id:A093150
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| A093150 |
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Absolute value of difference between (sum of digits of n if n odd, otherwise sum of digits of 2n) and (sum of digits of n if n even, otherwise sum of digits of 2n). |
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+0
3
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| 0, 1, 2, 3, 4, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 3, 2, 1, 0, 1, 2, 3, 4, 5, 6, 2, 1, 0, 1, 2, 3, 4, 5, 6, 7, 1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 0, 1, 2, 3, 4, 4, 3, 2, 1, 0, 8, 7, 6, 5, 4, 3, 2, 1, 0, 1, 7, 6, 5, 4, 3, 2, 1, 0, 1, 2, 6, 5, 4, 3, 2, 1, 0, 1, 2, 3, 5, 4, 3, 2, 1, 0, 1, 2, 3, 4, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5
(list; graph; listen)
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OFFSET
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0,3
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COMMENT
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Zeros occur at 9*j.
First occurrence of k: 0,1,2,3,4,14,24,34,44,144,244,344,444,1444,2444,3444,4444,14444,24444,34444,44444,144444,244444,344444,444444, etc.
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FORMULA
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a(n) = | A092383(n) - A092384(n) |.
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MATHEMATICA
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f[n_] := Plus @@ IntegerDigits[ If[ OddQ[n], n, 2n]]; g[n_] := Plus @@ IntegerDigits[ If[ EvenQ[n], n, 2n]]; Table[ Abs[ f[n] - g[n]], {n, 0, 104}]
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CROSSREFS
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Cf. A092383, A092384.
Sequence in context: A066078 A058339 A133852 this_sequence A090281 A051951 A107898
Adjacent sequences: A093147 A093148 A093149 this_sequence A093151 A093152 A093153
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KEYWORD
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base,easy,nonn
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AUTHOR
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Robert G. Wilson v (rgwv(AT)rgwv.com), Mar 24 2004
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