This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A070298 #9 May 26 2020 06:29:18 %S A070298 3,0,3,2,2,2,2,1,3,1,4,2,0,2,3,4,3,2,1,3,2,4,4,2,2,4,2,2,3,4,1,4,1,2, %T A070298 3,3,1,4,5,4,3,3,1,5,2,5,1,3,2,7,3,5,1,3,3,7,3,4,3,5,1,6,2,2,3,5,0,6, %U A070298 2,6,4,6,2,8,1,5,2,5,2,9,4,5,1,4,1,9,5,5 %N A070298 Let Unrel(m) = number of unrelated numbers less than m; then a(n) = number of values of m for which Unrel(m) = n. %C A070298 a(0), not included in the sequence, is infinite, as no prime has any unrelated number. %C A070298 Apparently this gives the indices k such that A045763(k)=n. - _R. J. Mathar_, Jun 27 2007 %H A070298 Jinyuan Wang, <a href="/A070298/b070298.txt">Table of n, a(n) for n = 1..5000</a> %e A070298 a(1) = 3, the three numbers m being 6,8 and 9. The corresponding single unrelated numbers are 4, 6 and 6 respectively. %Y A070298 Cf. A045763, A070297. %K A070298 nonn %O A070298 1,1 %A A070298 _Amarnath Murthy_, May 10 2002 %E A070298 Corrected and extended by _R. J. Mathar_, Jun 27 2007 %E A070298 More terms from _Jinyuan Wang_, May 25 2020