On the Euler Function of the Catalan Numbers
NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF APPLIED MATHEMATICS
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We study the solutions of the equation phiCmphiCn r where r is a xed rational number, Ck is the kth Catalan number and phi is the Euler function. We note that the number r 4 is special for this problem and for it we construct solutions m n to the above equation which are related to primes p such that 2p - 1 or 4p - 3 is also prime.
- Numerical Mathematics