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 A274358 #5 Jun 19 2016 19:03:04 %S A274358 29888,109375,436671,716607,2829248,3329343,3948992,5195583,5568831, %T A274358 8801216,9767871,10667456,10947392,12347072,12627008,14713407, %U A274358 14959808,16359488,17479232,20032191,20278592,20558528,20965311,23077952,23544512,24109375,24477632 %N A274358 Numbers n such that n and n+1 both have 14 divisors. %H A274358 Charles R Greathouse IV, <a href="/A274358/b274358.txt">Table of n, a(n) for n = 1..10000</a> %o A274358 (PARI) is(n)=numdiv(n)==14 && numdiv(n+1)==14 %o A274358 (PARI) list(lim)=my(v=List(),p6,t); forprime(p=2,sqrtnint(lim\2,6), p6=p^6; forprime(q=2,lim\p6, if(p==q,next); t=p6*q; if(numdiv(t+1)==14, listput(v,t)); if(numdiv(t-1)==14, listput(v,t-1)))); Set(v) %Y A274358 Intersection of A005237 and A030632. %Y A274358 Cf. A000005, A274357. %K A274358 nonn %O A274358 1,1 %A A274358 _Charles R Greathouse IV_, Jun 19 2016