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A105859 Numbers m such that A104647(m) = A104647(m-1) + A104647(m-2). 3

%I #6 Aug 14 2018 21:04:08

%S 2,3,4,5,6,9,12,17,21,25,30,37,38,39,42,46,47,51,55,56,61,66,73,74,79,

%T 86,89,93,94,102,110,111,117,118,120,124,130,136,141,144,148,154,155,

%U 158,162,170,171,172,173,177,185,186,187,188,189,190,195,201,206,212

%N Numbers m such that A104647(m) = A104647(m-1) + A104647(m-2).

%H Robert Israel, <a href="/A105859/b105859.txt">Table of n, a(n) for n = 1..10000</a>

%e n=12: A104647(12)=17 = A104647(11)+A104647(10)=9+8=7, therefore 12 is a term;

%e n=42: A104647(42)=60 = A104647(41)+A104647(40)=31+29=60, therefore 42 is a term.

%p N:= 10^3: # for all terms <= N

%p A104647:= Array(0..N):

%p A104647[1]:= 1:

%p for n from 2 to N do A104647[n]:= (A104647[n-1] mod n) + (A104647[n-2] mod n) od:

%p select(t -> (A104647[t] = A104647[t-1]+A104647[t-2]), [$2..N]); # _Robert Israel_, Aug 14 2018

%Y Cf. A105860.

%K nonn

%O 1,1

%A _Reinhard Zumkeller_, Apr 23 2005

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Last modified May 27 12:27 EDT 2024. Contains 372858 sequences. (Running on oeis4.)