cp's OEIS Frontend

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.

A036332 Composite numbers n such that juxtaposition of prime factors of n has length 8.

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%I A036332 #7 Feb 21 2019 23:17:42
%S A036332 256,384,576,640,704,832,864,896,960,1056,1088,1216,1248,1296,1344,
%T A036332 1440,1472,1584,1600,1632,1760,1824,1856,1872,1936,1944,1984,2016,
%U A036332 2080,2160,2208,2240,2288,2368,2376,2400,2448,2464,2624,2640,2704,2720,2736
%N A036332 Composite numbers n such that juxtaposition of prime factors of n has length 8.
%C A036332 The last term of this sequence is a(8779116)=99691027.
%H A036332 Nathaniel Johnston, <a href="/A036332/b036332.txt">Table of n, a(n) for n = 1..10000</a>
%p A036332 isA036332 := 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))=8, n, NULL): end: seq(isA036332(n),n=2..2736); # _Nathaniel Johnston_, Jun 22 2011
%Y A036332 Cf. A036326-A036334.
%K A036332 nonn,base,fini,easy
%O A036332 1,1
%A A036332 _Patrick De Geest_, Dec 15 1998