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The number m such that c'(m) = A005206(A003231(n)), where c'(m) = A249115(m) is the m-th positive integer not in A003231.
(Formerly M0635)
2

%I M0635 #23 Aug 09 2015 10:03:44

%S 2,3,5,7,8,10,12,13,15,16,18,20,21,23,24,26,28,29,31,33,34,36,37,39,

%T 41,42,44,46,47,49,50,52,54,55,57,58,60,62,63,65,67,68,70,71,73,75,76,

%U 78,80,81,83,84,86,88,89,91,92,94,96,97,99,101,102,104,105

%N The number m such that c'(m) = A005206(A003231(n)), where c'(m) = A249115(m) is the m-th positive integer not in A003231.

%C This is the function named phi in the Carlitz-Scoville-Vaughan link. - _Eric M. Schmidt_, Aug 14 2014

%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

%H L. Carlitz, R. Scoville and T. Vaughan, <a href="http://www.fq.math.ca/Scanned/11-4/carlitz.pdf">Some arithmetic functions related to Fibonacci numbers</a>, Fib. Quart., 11 (1973), 337-386.

%F Conjecture: a(n) = A078489(n) + n - 1. - _Ralf Stephan_, Feb 24 2004

%K nonn

%O 1,1

%A _N. J. A. Sloane_

%E More terms and a definition from _Eric M. Schmidt_, Aug 17 2014

%E Definition edited by _Eric M. Schmidt_, Aug 07 2015