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 A180157 Arithmetic mean of digits is not an integer. 3
 10, 12, 14, 16, 18, 21, 23, 25, 27, 29, 30, 32, 34, 36, 38, 41, 43, 45, 47, 49, 50, 52, 54, 56, 58, 61, 63, 65, 67, 69, 70, 72, 74, 76, 78, 81, 83, 85, 87, 89, 90, 92, 94, 96, 98, 100, 101, 103, 104, 106, 107, 109, 110, 112, 113, 115, 116, 118, 119, 121, 122, 124, 125 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Complement of A061383; A180160(a(n)) > 0; A004426(a(n)) <> A004427(a(n)). It seems 'obvious' that a(n) ~ n; is this true? - Charles R Greathouse IV, Feb 06 2013 LINKS R. Zumkeller, Table of n, a(n) for n = 1..10000 MATHEMATICA Select[Range[200], !IntegerQ[Mean[IntegerDigits[#]]]&] (* Harvey P. Dale, Mar 27 2011 *) PROG (PARI) is(n)=my(v=digits(n)); sum(i=1, #v, v[i])%#v>0 \\ Charles R Greathouse IV, Feb 06 2013 CROSSREFS Cf. A007953, A055642. Sequence in context: A247393 A055983 A318700 * A309539 A273492 A227870 Adjacent sequences: A180154 A180155 A180156 * A180158 A180159 A180160 KEYWORD base,nonn,easy AUTHOR Reinhard Zumkeller, Aug 15 2010 STATUS approved

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Last modified September 13 17:13 EDT 2024. Contains 375910 sequences. (Running on oeis4.)