[seqfan] Re: A073615
Don Reble
djr at nk.ca
Thu Feb 6 13:45:59 CET 2014
> [A073615] could use some more terms (probably from a trivial
> modification of your program, Don?)...
Ok.
5,11,13,101,223,1277,1279,1616603,3772637849,51448351,
115438255651987,1007002660975121,433241801791933
Everything looks good in those two sequences, except maybe
> %t A236411 This program generates the first ten terms of the sequence.
> To generate more would require significantly greater computing
> resources...
All you need is a sieving technique. BitTwiddler, here, is an
ordinary desk computer. But the sieve hastens by a factor of 140000,
and he pops out that that eleventh term (a(12), actually) in
1.6 seconds.
--
Don Reble djr at nk.ca
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