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 A067113 #7 Mar 16 2020 18:59:09 %S A067113 1,5,14,15,21,23,28,31,37,41,50,56,60,68,69,70,70,70,71,73,74,75,79, %T A067113 83,84,90,99,100,109,115,117,119,124,126,131,137,139,147,156,159,161, %U A067113 165,168,174,175,179,179,179,183,187,188,192,200,204,209,211,220,225,232 %N A067113 Let N = 0.149162536496481100121... = A001191, the concatenation of the squares. Then a(n) = sum of first n digits of N. %F A067113 a(n) ~ 4.5n (since 0.149162536... = A001191 is 10-normal). %e A067113 a(5) = 1+4+9+1+6 = 21. %K A067113 base,easy,nonn %O A067113 1,2 %A A067113 _Amarnath Murthy_, Jan 08 2002 %E A067113 Corrected and extended by Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 19 2003 %E A067113 Asymptotic formula from _Charles R Greathouse IV_, Oct 04 2008