Search: id:A002390
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%I A002390 M3318 N1334
%S A002390 4,8,1,2,1,1,8,2,5,0,5,9,6,0,3,4,4,7,4,9,7,7,5,8,9,1,3,4,2,4,3,6,8,
%T A002390 4,2,3,1,3,5,1,8,4,3,3,4,3,8,5,6,6,0,5,1,9,6,6,1,0,1,8,1,6,8,8,4,0,
%U A002390 1,6,3,8,6,7,6,0,8,2,2,1,7,7,4,4,1,2,0,0,9,4,2,9,1,2,2,7,2,3,4,7,4
%N A002390 Decimal expansion of natural logarithm of golden ratio.
%C A002390 Also equals asinh(1/2).
%D A002390 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A002390 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A002390 W. E. Mansell, Tables of Natural and Common Logarithms. Royal Society 
               Mathematical Tables, Vol. 8, Cambridge Univ. Press, 1964, p. XVIII.
%H A002390 S. Plouffe, Plouffe's Inverter, <a href="http://pi.lacim.uqam.ca/piDATA/
               logphi.txt">ln(phi) to 10000 digits</a>
%H A002390 S. Plouffe, <a href="http://www.worldwideschool.org/library/books/sci/
               math/MiscellaneousMathematicalConstants/chap65.html">ln(0.5+0.5*SQRT(5)) 
               to 2000 digits</a>
%H A002390 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               FibonacciHyperbolicFunctions.html">Fibonacci Hyperbolic Functions</
               a>
%e A002390 .48121182505960344749775891342436842313518433438566051966101...
%p A002390 arcsinh(1/2);
%Y A002390 Cf. A001622.
%Y A002390 Sequence in context: A021875 A127734 A154520 this_sequence A122149 A021679 
               A134484
%Y A002390 Adjacent sequences: A002387 A002388 A002389 this_sequence A002391 A002392 
               A002393
%K A002390 nonn,cons
%O A002390 0,1
%A A002390 N. J. A. Sloane (njas(AT)research.att.com).

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