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 A020996 #33 Jan 05 2025 19:51:34 %S A020996 0,1,5,13,14,89,96,123,221,387,419,550,648,749,866,892,1105,2037 %N A020996 Numbers k such that the sum of the digits of Fibonacci(k) in base 12 is k. %C A020996 No more terms < 100000. - _Manfred Scheucher_, Aug 03 2015 %H A020996 Manfred Scheucher, <a href="/A020996/a020996.sage.txt">Sage Script</a> %H A020996 David Terr, <a href="https://web.archive.org/web/2024*/https://www.fq.math.ca/Scanned/34-4/terr.pdf">On the Sums of Digits of Fibonacci Numbers,</a> Fibonacci Quarterly 34, Aug. 1996, pp. 349-355. %p A020996 filter:= proc(n) convert(convert(combinat:-fibonacci(n),base,12),`+`)=n end proc: %p A020996 select(filter, [$1..3000]); # _Robert Israel_, Aug 03 2015 %o A020996 (PARI) isok(n) = vecsum(digits(fibonacci(n), 12)) == n; \\ _Michel Marcus_, Feb 18 2015 %Y A020996 Cf. A020995 (base 10), A025490 (base 11). %K A020996 nonn,base,more %O A020996 1,3 %A A020996 _Sven Simon_ %E A020996 a(1)=0 inserted by _Sean A. Irvine_, May 06 2019