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A144430 a(n) = 1 + A144429(n). 3

%I #13 Oct 08 2018 04:14:17

%S 2,3,4,5,7,10,11,13,16,17,19,22,23,25,28,29,31,34,35,37,40,41,43,46,

%T 47,49,52,53,55,58,59,61,64,65,67,70,71,73,76,77,79,82,83,85,88,89,91,

%U 94,95,97,100,101,103,106,107,109,112,113,115,118,119,121,124,125,127,130

%N a(n) = 1 + A144429(n).

%C If you cross out every 3rd term starting at 4 and cross out multiples of 5, the reduced sequence is 2, 3, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 49, 53, 59, 61, ... which starts with 14 primes.

%C Essentially the same as A047259. - _Georg Fischer_, Oct 07 2018

%H Muniru A Asiru, <a href="/A144430/b144430.txt">Table of n, a(n) for n = 1..2000</a>

%F a(n) = a(n-3) + 6, n > 5.

%o (GAP) a:=[2,3,4,5,7];; for n in [6..70] do a[n]:=a[n-3]+6; od; a; # _Muniru A Asiru_, Oct 07 2018

%Y Cf. A144429.

%K nonn,easy,less

%O 1,1

%A Milton L. Brown (miltbrown(AT)earthlink.net), Oct 13 2008

%E Edited and extended by _R. J. Mathar_, Oct 15 2008

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Last modified April 19 11:31 EDT 2024. Contains 371792 sequences. (Running on oeis4.)