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A081548
Smallest composite number which is 1 more than the product of n distinct primes numbers.
+0
2
4, 15, 106, 391, 3991, 30031, 510511, 9699691, 223092871, 6469693231, 255887521891, 7420738134811, 304250263527211, 13082761331670031, 614889782588491411, 32589158477190044731, 1922760350154212639071
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 2 11:54 EST 2009. Contains 167921 sequences.
AT&T Labs Research
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