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 A124622 #7 Oct 11 2019 11:00:51 %S A124622 9,15,21,99,39,459,399,69,667,93,111,205,129,705,1113,885,915,2613, %T A124622 1207,803,1817,747,1869,2619,909,309,2247,7957,1243,381,393,3699,2085, %U A124622 3129,453,8635,489,501,16089,1611,5249,9741,1737,2955,2985,3165,2007,19295 %N A124622 Smallest odd interprime divisible by n-th odd prime. %F A124622 a(n) = (prime(A126233(n)+1) + prime(A126233(n)))/2. %t A124622 f[n_] := Block[{k = 1, c},While[c = (Prime[k + 1] + Prime[k])/2; Mod[c, 2] == 0 || Mod[c, Prime[n + 1]] > 0, k++ ];c];Table[f[n], {n, 50}] (* _Ray Chandler_, Jan 09 2007 *) %Y A124622 Cf. A072569, A072572, A072573, A126228, A126229, A126230, A124619, A124620, A126231. %K A124622 nonn %O A124622 1,1 %A A124622 _Artur Jasinski_, Dec 21 2006 %E A124622 Extended by _Ray Chandler_, Jan 09 2007