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 A383294 #8 Apr 22 2025 13:33:27
%S A383294 2,3,5,6,8,10,14,17,20,22,24,28,31,33,37,43,50,57,61,64,67,74,76,81,
%T A383294 89,100,107,112,115,122,124,128,134,138,151,160,167,171,182,189,197,
%U A383294 203,207,216,232,236,240,253,259,264,279,287,290,297,305,314,319,328,336,344,359,363,371,377,381,401,420,430,438,444
%N A383294 Positions of prime powers (A246655) in EKG-sequence.
%H A383294 Antti Karttunen, <a href="/A383294/b383294.txt">Table of n, a(n) for n = 1..20000</a>
%H A383294 <a href="/index/Ed#EKG">Index entries for sequences related to EKG sequence</a>.
%o A383294 (PARI) isA383294(n) = { my(x=A064413(n)); (isprime(x) || isprimepower(x)); };
%Y A383294 Positions of terms > 1 in A383293.
%Y A383294 Disjoint union of A064955 and A383295.
%Y A383294 Cf. A064413, A246655.
%K A383294 nonn
%O A383294 1,1
%A A383294 _Antti Karttunen_, Apr 22 2025