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 A298687 #22 Mar 02 2025 08:00:35 %S A298687 13440,19440,329400,600600,2499840,3150840,5590200,7660800,69069000, %T A298687 83980800,96049800,98385840,175472640,179663400,237484800,320498640, %U A298687 330663600,375396840,404351640,406380240,429660000,437940000,505234800,574585200,635980800 %N A298687 Numbers i such that Fibonacci(i) is divisible by i+k for k=0..5. %C A298687 A subsequence of A298686. %H A298687 Chai Wah Wu, <a href="/A298687/b298687.txt">Table of n, a(n) for n = 1..57</a> %o A298687 (Python) %o A298687 p0 = 0 %o A298687 p1 = 1 %o A298687 for i in range(1,1000000): %o A298687 if p1 % i == 0 and p1 % (i+1) == 0 and p1 % (i+2) == 0: %o A298687 if p1 % (i+3) == 0 and p1 % (i+4) == 0 and p1 % (i+5) == 0: print(i) %o A298687 p0, p1 = p1, p0+p1 %Y A298687 Cf. A000045, A023172, A217738, A221018, A225219, A298684, A298685, A298686. %K A298687 nonn %O A298687 1,1 %A A298687 _Alex Ratushnyak_, Jan 24 2018 %E A298687 a(9)-a(25) from _Chai Wah Wu_, Jan 27 2018