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 A340151 #6 Dec 31 2020 15:34:37 %S A340151 445,527,935,1207,1577,1595,1705,1711,2101,2145,2201,2507,3245,3315, %T A340151 4895,6045,6631,6931,7511,8371,9707,9845,10189,10295,10505,11023, %U A340151 11895,12137,12194,13145,13571,13845,14101,14245,15042,15281,16235,16643,17355,17701,18559,19567,20119,20865,22703,23347,25123,26581,27101,27695 %N A340151 Setwise difference A340150 \ A340076. %C A340151 Positions k where A340149(k) = 1, but A340075(k) > 1. %o A340151 (PARI) isA340151(n) = ((1!=A340075(n))&&(1==A340149(n))); \\ Uses code from both A340075 and A340149 %Y A340151 Setwise difference A340150 \ A340076. %Y A340151 Cf. A340091 (gives the same terms prime shifted once and sorted into ascending order). %Y A340151 Cf. A340075, A340149. %K A340151 nonn %O A340151 1,1 %A A340151 _Antti Karttunen_, Dec 30 2020