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 A046280 #10 Nov 16 2019 10:29:45 %S A046280 3,15,25,31,37,55,57,85,91,99,133,153,173,179,183,219,293,301,305,353, %T A046280 355,383,387,389,393,397,403,407,409,427,453,467,491,495,515,517,519, %U A046280 547,573,681,691,703,705,723,731,733,747,761,795,829,837,845,865,873 %N A046280 Numbers k such that the sum of the first k lucky numbers, A046279(k), is prime. %H A046280 Amiram Eldar, <a href="/A046280/b046280.txt">Table of n, a(n) for n = 1..10000</a> %Y A046280 Cf. A013916, A000959, A046279, A046281. %K A046280 nonn %O A046280 1,1 %A A046280 _Patrick De Geest_, Jun 15 1998 %E A046280 Offset corrected by _Amiram Eldar_, Nov 16 2019