Smallest abundant number (sigma(x) > 2x) which is not divisible by any of the first n primes.
12, 945, 5391411025, 20169691981106018776756331
2 seqfan posts
Tue Jan 5 22:08:05 CET 2010 [seqfan] Re: A002961: sigma(n)=sigma(n+1).
Tue Jan 5 21:22:48 CET 2010 [seqfan] Re: A002961: sigma(n)=sigma(n+1).
Index of A-numbers in seqfan: by ascending order
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