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A036304 Composite numbers n such that digits of prime factors of n are either 1 or 4. +0
2
121, 451, 1331, 1681, 4961, 14641, 18491, 45221, 48851, 54571, 68921, 125521, 158521, 161051, 168551, 182081, 203401, 452551, 455521, 467851, 485221, 497431, 537361, 590851, 600281, 758131, 1380731, 1686781, 1697851, 1743731, 1771561 (list; graph; listen)
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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.

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