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A036332 Composite numbers n such that juxtaposition of prime factors of n has length 8. 1
256, 384, 576, 640, 704, 832, 864, 896, 960, 1056, 1088, 1216, 1248, 1296, 1344, 1440, 1472, 1584, 1600, 1632, 1760, 1824, 1856, 1872, 1936, 1944, 1984, 2016, 2080, 2160, 2208, 2240, 2288, 2368, 2376, 2400, 2448, 2464, 2624, 2640, 2704, 2720, 2736 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The last term of this sequence is a(8779116)=99691027.

LINKS

Nathaniel Johnston, Table of n, a(n) for n = 1..10000

MAPLE

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

CROSSREFS

Cf. A036326-A036334.

Sequence in context: A044979 A186473 A046309 * A114987 A046310 A115176

Adjacent sequences:  A036329 A036330 A036331 * A036333 A036334 A036335

KEYWORD

nonn,base,fini,easy

AUTHOR

Patrick De Geest, Dec 15 1998

STATUS

approved

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Last modified April 11 19:49 EDT 2021. Contains 342888 sequences. (Running on oeis4.)