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 A131993 #16 Sep 08 2022 08:45:31 %S A131993 63,364,3906,19608,177156,402234,1508598,2613660,6728904,21243690, %T A131993 29583456,71270178,118752606,150508644,234330768,426237714,727250580, %U A131993 858672906,1370581548,1830004056,2101864254,3116505840,3987077724 %N A131993 1 + prime(n) + prime(n)^2 + prime(n)^3 + prime(n)^4 + prime(n)^5. %C A131993 a(n) = 1 + A131992(n)*A000040(n). %H A131993 Ivan Panchenko, <a href="/A131993/b131993.txt">Table of n, a(n) for n = 1..1000</a> %F A131993 a(n) = (A030516(n) - 1)/A006093(n). %t A131993 Total[#^Range[0,5]]&/@Prime[Range[30]] (* _Harvey P. Dale_, Apr 20 2011 *) %o A131993 (Magma) [1+(&+[NthPrime(n)^(k): k in [1..5]]): n in [1..100]]; // Berselli - Librandi, Apr 20 2011 %Y A131993 Cf. A050997, A008864, A060800, A131991. %K A131993 nonn %O A131993 1,1 %A A131993 _Reinhard Zumkeller_, Aug 06 2007