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 A161454 #4 Jan 25 2018 10:07:37 %S A161454 14,31,44,61,74,91,104,121,134,151,164,181,194,211,224,241,271,286, %T A161454 301,316,331,346,361,376,391,406,421,436,451,466,481,496,524,541,558, %U A161454 575,584,601,618,635,644,661,678,695,704,721,738,755,781,796,815,830,841 %N A161454 Numbers n such that A160700(n) = 14. %H A161454 Charles R Greathouse IV, <a href="/A161454/b161454.txt">Table of n, a(n) for n = 1..10000</a> %F A161454 16n - 16 <= a(n) <= 16n - 1. - _Charles R Greathouse IV_, Jan 25 2018 %o A161454 (PARI) A160700(n)=my(t=n%16); while(n>15, n>>=4; t=bitxor(t, n%16)); t %o A161454 a(n)=for(k=16*n-16, 16*n-1, if(a(k)==14, return(k))) \\ _Charles R Greathouse IV_, Jan 25 2018 %Y A161454 Cf. A161440, A161441, A161442, A161443, A161444, A161445, A161446, A161447, A161448, A161449, A161450, A161451, A161452, A161453, A161455. %K A161454 nonn,easy %O A161454 1,1 %A A161454 _Reinhard Zumkeller_, Jun 10 2009