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 A341689 #17 May 09 2024 07:15:21 %S A341689 16,282090779141153551270,2210712955689035458600206881540015387708550, %T A341689 48675866046797839528447895106845001955284425583991669795082795118772, %U A341689 340116502128393540096171523813533871084766138971398067752157768889198596930173282496 %N A341689 a(n) is the sum of the 4th power of the first A125907(n) primes. %H A341689 OEIS Wiki, <a href="https://oeis.org/wiki/Sums_of_primes_divisibility_sequences">Sums of powers of primes divisibility sequences</a>. %o A341689 (Python) %o A341689 sum = 0 %o A341689 for n in range(1,10000000000001): %o A341689 sum += pow(prime[n],4) %o A341689 if sum % n == 0: %o A341689 print(n, prime[n], sum, (sum // n)) %Y A341689 Cf. A122102, A125907, A232869, A128168, A233893. %K A341689 nonn,hard,more %O A341689 1,1 %A A341689 _Karl-Heinz Hofmann_, Feb 17 2021 %E A341689 a(4) from _Martin Ehrenstein_, Feb 27 2021 %E A341689 a(5) from _Paul W. Dyson_, May 09 2024