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%I #11 Feb 21 2019 23:17:07
%S 64,96,144,160,176,208,216,224,240,264,272,304,312,324,336,360,368,
%T 396,400,408,440,456,464,468,484,486,496,504,520,540,552,560,572,592,
%U 594,600,612,616,656,660,676,680,684,688,696,702,726,728,729,744,748,752
%N Composite numbers n such that juxtaposition of prime factors of n has length 6.
%C The last term of this sequence is a(96411)=994009.
%H Nathaniel Johnston, <a href="/A036330/b036330.txt">Table of n, a(n) for n = 1..10000</a>
%p isA036330 := proc(n) local d: d:=ifactors(n)[2]: return `if`(not isprime(n) and add(length(d[j][1])*d[j][2], j=1..nops(d))=6, n, NULL): end: seq(isA036330(n),n=2..752); # _Nathaniel Johnston_, Jun 22 2011
%t pf6Q[n_]:=!PrimeQ[n]&&Total[Last[#]IntegerLength[First[#]]&/@FactorInteger[ n]]==6; Select[Range[800],pf6Q] (* _Harvey P. Dale_, Jun 19 2012 *)
%Y Cf. A036326-A036334.
%K nonn,base,fini,easy
%O 1,1
%A _Patrick De Geest_, Dec 15 1998