login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A093150 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). 2
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; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

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.

LINKS

Table of n, a(n) for n=0..104.

FORMULA

a(n) = | A092383(n) - A092384(n) |.

MATHEMATICA

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}]

CROSSREFS

Cf. A092383, A092384.

Sequence in context: A066078 A058339 A133852 * A301297 A167831 A090281

Adjacent sequences:  A093147 A093148 A093149 * A093151 A093152 A093153

KEYWORD

base,easy,nonn

AUTHOR

Robert G. Wilson v, Mar 24 2004

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 30 00:49 EDT 2021. Contains 346346 sequences. (Running on oeis4.)