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 A034131 #12 Aug 03 2020 01:38:34 %S A034131 4,16,43,92,167,275,422,615,858,1158,1521,1954,2461,3049,3724,4493, %T A034131 5360,6332,7415,8616,9939,11391,12978,14707,16582,18610,20797,23150, %U A034131 25673,28373,31256,34329,37596,41064,44739,48628,52735,57067,61630 %N A034131 Decimal part of cube root of a(n) starts with 5: first term of runs. %F A034131 a(n) = ceiling((n+1/2)^3). - _Benoit Cloitre_, Apr 16 2003 %F A034131 (1/8) {8n^3 + 36n^2 + 54n + 31 - (-1)^n - 2(-1)^[(n-1)/2] }. - _Ralf Stephan_, Jun 10 2005 %Y A034131 Cf. A034121. %K A034131 nonn,base %O A034131 1,1 %A A034131 _Patrick De Geest_, Sep 15 1998