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A046444 Composite numbers whose 4 prime factors are distinct in length. 1
2241998, 2250886, 2264218, 2268662, 2286394, 2290882, 2295326, 2295458, 2308658, 2309054, 2313586, 2330878, 2335322, 2336246, 2340778, 2354374, 2357542, 2361986, 2375186, 2375318, 2377034, 2381566, 2384602, 2398726 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

EXAMPLE

E.g. 2241998 because 2241998 = 2 * 11 * 101 * 1009 = (1)(2)(3)(4).

CROSSREFS

Sequence in context: A172851 A203275 A034608 * A180940 A089445 A089446

Adjacent sequences:  A046441 A046442 A046443 * A046445 A046446 A046447

KEYWORD

nonn

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Jul 15 1998.

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Last modified February 15 16:39 EST 2012. Contains 205823 sequences.