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A107820 a(1)=3, a(2)=5; thereafter a(n) = n+5. 0

%I

%S 3,5,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,

%T 30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,

%U 53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76

%N a(1)=3, a(2)=5; thereafter a(n) = n+5.

%C The old definition (which does not fit the sequence) was "Slowest increasing sequence where a(n)-n is prime".

%H <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (2,-1).

%t Join[{3,5},Range[8,80]] (* _Harvey P. Dale_, Jul 25 2019 *)

%o (PARI) a(n)=if(n<3,2*n+1,n+5) \\ M. F. Hasler, Sep 06 2011

%K nonn,easy,less

%O 1,1

%A _Eric Angelini_, Jun 11 2005

%E Edited by _N. J. A. Sloane_, Sep 06 2011

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Last modified October 21 16:25 EDT 2019. Contains 328302 sequences. (Running on oeis4.)