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A082127 Rounded base-3 logarithm of A082126(n). 1

%I #9 Mar 11 2015 07:43:18

%S 3,3,3,2,3,7,8,12,18,27,43,62,93,142,213,317,478,717,1073,1612,2418

%N Rounded base-3 logarithm of A082126(n).

%o (PARI) p=19; 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(round(log(v[t]-v[u])/log(3))", "); p=p*(v[t]-v[u]))

%Y Cf. A082129.

%K nonn,hard

%O 0,1

%A _Ralf Stephan_, Apr 04 2003

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Last modified June 24 21:56 EDT 2024. Contains 373690 sequences. (Running on oeis4.)