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 A141127 #13 Jul 18 2025 08:34:51 %S A141127 1,1,34,141,334,595,1012,1503,2192,2983,3786,4963,6304,7687,9518, %T A141127 11017,13122,15277,17760,20373,23312,26695,29742,33365,37338,41175, %U A141127 45580,50217,54762,59549,65332,71067,76712,82765,88692,95657,102814,110385 %N A141127 a(n) = prime(prime(n*n) - n*n) - n*n where prime(n) is the n-th prime. %e A141127 a(1) = prime(prime(1*1) - 1*1) - 1*1 = prime(prime(1) - 1) - 1 = prime(2 - 1) - 1 = prime(1) - 1 = 2 - 1 = 1. %e A141127 a(5) = prime(prime(5*5) - 5*5) - 5*5 = prime(prime(25) - 25) - 25 = prime(97 - 25) - 25 = prime(72) - 25 = 359 - 25 = 334. %p A141127 p:=ithprime: seq(p(p(n^2)-n^2)-n^2,n=1..40); # _Emeric Deutsch_, Aug 16 2008 %t A141127 a[n_]:=Prime[Prime[n*n]-n*n]-n*n;Array[a,38] (* _James C. McMahon_, Jul 17 2025 *) %Y A141127 Cf. A014689, A141129. %K A141127 nonn %O A141127 1,3 %A A141127 _Juri-Stepan Gerasimov_, Jul 31 2008 %E A141127 Corrected and extended by _Emeric Deutsch_, Aug 16 2008