On the Heights of Happy Numbers
Tianxin Cai and Xia Zhou
Source: Rocky Mountain J. Math. Volume 38, Number 6 (2008), 1921-1926.
First Page PDF: View first page of article (PDF, 216 KB)Primary Subjects: 11A07, 11A63
Keywords: Happy numbers; heights
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Links and Identifiers
Permanent link to this document: http://projecteuclid.org/euclid.rmjm/1225114174
Digital Object Identifier: doi:10.1216/RMJ-2008-38-6-1921
Mathematical Reviews number (MathSciNet):
MR2467371
Zentralblatt MATH identifier:
05541303
References
E. El-sedy and S. Siksek, On happy numbers, Rocky Mountain J. Math. 30 (2000), 565-570.
Mathematical Reviews (MathSciNet):
MR1786998
Digital Object Identifier: doi:10.1216/rmjm/1022009281
Project Euclid: euclid.rmjm/1181070336
H.G. Grundman and E.A. Teeple, Heights of happy numbers and cubic happy numbers, The Fibonacci Quart. 41 (2003), 301-306.
Mathematical Reviews (MathSciNet):
MR2022409
--------, Generalized happy numbers, The Fibonacci Quart. 39 (2001), 462-466.
Mathematical Reviews (MathSciNet):
MR1866364
R. Guy, Unsolved problems in number theory, Springer-Verlag, New York, 1994.
Mathematical Reviews (MathSciNet):
MR1299330
R. Honsberger, Ingenuity in mathematics, The Mathematical Association of America, Washington, 1970.
N.J.A. Sloane, The on-line encyclopedia of integer sequences, http://www.research. att.com/$\tilden$jas/sequences/.
Rocky Mountain Journal of Mathematics
