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 A108608 #9 Apr 07 2022 14:27:02 %S A108608 48,80,108,176,252,300,368,405,420,464,468,500,567,660,675,684,848, %T A108608 891,944,980,1020,1116,1136,1140,1323,1332,1377,1424,1428,1452,1539, %U A108608 1548,1575,1616,1700,1716,1740,1820,1860,1875,1932,2096,2156,2196,2295,2300 %N A108608 5-almost primes whose sum of factors is a prime. %H A108608 Charles R Greathouse IV, <a href="/A108608/b108608.txt">Table of n, a(n) for n = 1..10000</a> %e A108608 48=2*2*2*2*3 (5-almost prime) and 2+2+2+2+3=11 is a prime. %t A108608 Select[Range[2500],PrimeOmega[#]==5&&PrimeQ[Total[Times@@@FactorInteger[#]]]&] (* _Harvey P. Dale_, Apr 07 2022 *) %o A108608 (PARI) is(n)=my(f=factor(n));sum(i=1,#f~,f[i,2])==5 && isprime(sum(i=1,#f~,f[i,1]*f[i,2])) \\ _Charles R Greathouse IV_, Oct 11 2013 %Y A108608 Cf. A107707, A108607, A108609 (resp.) 3, 4, 6 (resp.)-almost primes whose sum of factors is a prime. %K A108608 nonn %O A108608 1,1 %A A108608 _Zak Seidov_, Jun 12 2005