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Numbers > 1 not of the form 2n*k - A319929(n,k) where n and k > 1.
6

%I #41 Mar 05 2022 01:20:09

%S 2,3,4,5,6,7,9,11,12,14,15,17,19,21,22,25,27,28,29,31,35,37,38,39,44,

%T 45,46,47,49,51,55,57,61,62,65,67,69,71,75,76,79,81,86,87,89,91,92,94,

%U 97,99,101,105,107,109,115,117,118,119,121

%N Numbers > 1 not of the form 2n*k - A319929(n,k) where n and k > 1.

%C The subsequence of odd terms is A327260. - _David Lovler_, Jan 23 2022

%H David Lovler, <a href="/A327261/b327261.txt">Table of n, a(n) for n = 1..2858</a>

%o (PARI) T319929(n, k) = if (n%2, if (k%2, n+k-1, k), if (k%2, n, 0));

%o T(n, k) = 2*n*k - T319929(n, k); \\ A327259

%o lista(nn) = {my(list = List()); for (n=2, nn, for (k=2, nn\n, listput(list, T(n, k)); ); ); setminus([2..nn], Set(list)); } \\ _David Lovler_, Apr 30 2021

%Y Cf. A327259, A327260, A345357.

%Y Fourth row of array A327263.

%K nonn

%O 1,1

%A _David Lovler_, Aug 27 2019

%E Name amended _David Lovler_, Jan 22 2022