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A081548
Smallest composite number which is 1 more than the product of n distinct primes numbers.
2
4, 15, 106, 391, 3991, 30031, 510511, 9699691, 223092871, 6469693231, 255887521891, 7420738134811, 304250263527211, 13082761331670031, 614889782588491411, 32589158477190044731, 1922760350154212639071, 117288381359406970983271, 7858321551080267055879091, 557940830126698960967415391
OFFSET
1,1
LINKS
FORMULA
If n is in A014545, then a(n) > A002110(n)+1, otherwise a(n) = A002110(n)+1. - Chai Wah Wu, Sep 02 2024
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Apr 01 2003
EXTENSIONS
Corrected and extended by David Wasserman, Jun 08 2004
a(18)-a(20) from Chai Wah Wu, Sep 02 2024
STATUS
approved