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 A083277 #22 Sep 06 2023 21:14:09 %S A083277 1,2,2,2,2,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5, %T A083277 5,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, %U A083277 7,7,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8 %N A083277 k appears 3k-2 times. %F A083277 a(n) = ceiling((1+sqrt(24*n+1))/6) = floor((7+sqrt(24*n-23))/6). %o A083277 (PARI) a(n) = (7+sqrt(24*n-23))\6; \\ _Michel Marcus_, Oct 30 2019 %Y A083277 Cf. A016777 (3n-2 with offset 1). %Y A083277 Partial sums of A255849. %K A083277 nonn %O A083277 1,2 %A A083277 _Daniele Parisse_, Jun 02 2003, Jul 07 2007