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 A368850 #4 Jan 20 2024 09:32:48 %S A368850 37,89,3391,6547,10271,20233,88397,2256827,6160597,11073263,14337313, %T A368850 15797057,18938809,24514339,28298057,29442893,33119963,40078453, %U A368850 118950121,128935063,135825923,154641481,209301217,244837321,342462997,471596659,498175681 %N A368850 Primes that are equal to the sum of the first k proper prime powers for some k. %e A368850 37 is a term because 37 is a prime and 37 = 4 + 8 + 9 + 16 = 2^2 + 2^3 + 3^2 + 2^4. %t A368850 Select[Accumulate[Select[Range[5000000], PrimeOmega[#] > 1 && PrimePowerQ[#] &]], PrimeQ[#] &] %Y A368850 Cf. A000040, A013918, A025475, A066525, A098562, A246547. %K A368850 nonn %O A368850 1,1 %A A368850 _Ilya Gutkovskiy_, Jan 07 2024