Search: id:A003052
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%I A003052 M2404
%S A003052 1,3,5,7,9,20,31,42,53,64,75,86,97,108,110,121,132,143,154,165,176,187,
%T A003052 198,209,211,222,233,244,255,266,277,288,299,310,312,323,334,345,356,
%U A003052 367,378,389,400,411,413,424,435,446,457,468,479,490,501,512,514,525
%N A003052 Self or Colombian numbers (not of form n + sum of digits of n).
%D A003052 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A003052 M. Gardner, Time Travel and Other Mathematical Bewilderments. Freeman, 
               NY, 1988, p. 116.
%D A003052 D. R. Kaprekar, Puzzles of the Self-Numbers. 311 Devlali Camp, Devlali, 
               India, 1959.
%D A003052 D. R. Kaprekar, The Mathematics of the New Self Numbers (Part V). 311 
               Devlali Camp, Devlali, India, 1967.
%D A003052 B. Recaman, Problem E2408, Amer. Math. Monthly, 81 (1974), p. 407.
%D A003052 J. Recreational Math., vol. 23, no. 1, p. 244, 1991.
%H A003052 W. Schneider, <a href="http://www.wschnei.de/digit-related-numbers/self-numbers.html">
               Self Numbers</a>
%H A003052 T. Trotter, <a href="http://www.trottermath.net/numthry/charlene.html">
               Charlene Numbers</a>
%H A003052 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               SelfNumber.html">Link to a section of The World of Mathematics.</
               a>
%H A003052 Wikipedia, <a href="http://en.wikipedia.org/wiki/Self_number">Self number</
               a>
%Y A003052 Cf. A006378, A006886.
%Y A003052 For self primes, i.e. self numbers which are primes, see A006378.
%Y A003052 Sequence in context: A114136 A025072 A083107 this_sequence A003219 A030142 
               A076185
%Y A003052 Adjacent sequences: A003049 A003050 A003051 this_sequence A003053 A003054 
               A003055
%K A003052 nonn,base
%O A003052 1,2
%A A003052 N. J. A. Sloane (njas(AT)research.att.com).
%E A003052 More terms from James A. Sellers (sellersj(AT)math.psu.edu), Jul 06 2000

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