|
%I #10 Mar 11 2015 07:26:48
%S 11,10,17,21,23,31,43,167,6383,31741,52112213,37549127743,
%T 36777947021270771,504837176634758950812127
%N Smallest difference > 1 between d and p/d for any divisor d of the partial product p of the sequence, starting with 11.
%o (PARI) p=11; print1(p, ", "); for(n=1, 50, v=divisors(p); r=sqrt(p); t=0; for(k=1, matsize(v)[2], if(v[k]>=r, t=k; break)); if(v[t]^2==p, u=t, u=t-1); if(v[t]-v[u]<2, u=u-1; t=t+1); print1(v[t]-v[u]", "); p=p*(v[t]-v[u]))
%Y Cf. A082120, A003681 (starts with 2, 3), A082123.
%K nonn,hard
%O 0,1
%A _Ralf Stephan_, Apr 04 2003
|
