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 A114407 #11 Oct 13 2019 20:18:05 %S A114407 64,96,32,112,16,32,168,24,32,16,80,32,140,36,48,24,8,32,80,16,32,210, %T A114407 14,40,56,16,36,12,48,80,40,24,32,16,112,16,80,107,21,60,84,16,8,54, %U A114407 18,16,56,104,16,60,20,16,16,32,16,8,104,64,24,8,32,80,192,80,10,126,24,12 %N A114407 7-almost prime gaps. First differences of A046308. %H A114407 Zak Seidov, <a href="/A114407/b114407.txt">Table of n, a(n) for n = 1..10000</a> %F A114407 a(n) = A046308(n+1) - A046308(n). %e A114407 a(1) = 64 = 192-128 where 128 is the first 7-almost prime and 192 is the second. %e A114407 a(2) = 96 = 288-192. %e A114407 a(3) = 32 = 320-288. %e A114407 a(4) = 112 = 432-320. %e A114407 a(5) = 16 = 448-432. %e A114407 a(6) = 32 = 480-448. %e A114407 a(7) = 168 = 648-480. %e A114407 a(8) = 24 = 672-648. %t A114407 Differences[Select[Range[10000],PrimeOmega[#]==7&]] (* _Harvey P. Dale_, Oct 13 2019 *) %Y A114407 Cf. A046308, A065516, A111870, A111871, A114403-A114411, A114412-A114422. %K A114407 easy,nonn %O A114407 1,1 %A A114407 _Jonathan Vos Post_, Nov 25 2005 %E A114407 Corrected and extended by _R. J. Mathar_, Aug 31 2007