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 A093552 #29 Jun 09 2019 21:16:34
%S A093552 2,5,47,107,71999,392279,305778479,24405534719,899133243623
%N A093552 a(n) is the smallest number m such that m-k is product of k+1 primes for k=0,1,2,...,n.
%C A093552 Each term of this sequence is prime.
%e A093552 a(5)=392279 because:
%e A093552 392279 is prime;
%e A093552 392279-1 = 2*196139;
%e A093552 392279-2 = 3*229*571;
%e A093552 392279-3 = 2*2*281*349;
%e A093552 392279-4 = 5*5*13*17*71;
%e A093552 392279-5 = 2*3*3*19*31*37;
%e A093552 392279 is the smallest number m such that m-k is product of k+1 primes for k=0,1,2,3,4 & 5.
%t A093552 Table[m = 1; While[Table[Plus @@ Last /@ FactorInteger[Prime[m] - k], {k, 0, n}] != Range[1, n + 1], m++]; Prime[m], {n, 0, 5}] (* _Robert Price_, Jun 09 2019 *)
%Y A093552 Cf. A072664, A072875, A086560.
%K A093552 nonn,more
%O A093552 0,1
%A A093552 _Farideh Firoozbakht_, Apr 14 2004
%E A093552 a(6) corrected by _Mike Oakes_, Jun 20 2012
%E A093552 a(7) from _Zak Seidov_, Apr 23 2017
%E A093552 a(8) from _Giovanni Resta_, Apr 27 2017