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A074855
Primes p such that all p-t for p/2 < t < p are composite, where t is a triangular number.
0
2, 3, 7, 19, 29, 37, 61, 211, 521, 613, 1579, 2131, 2467, 2551, 3331
OFFSET
1,1
COMMENTS
Next term, if it exists, is greater than 15900000. (Is this sequence finite?) - Ryan Propper, May 20 2006
EXAMPLE
29 is in the sequence because the triangular numbers between 14 and 29 are 15, 21, 28 and 29-15 = 14, 29-21 = 8, 29-28 = 1 are all composite.
CROSSREFS
Sequence in context: A038878 A040112 A246373 * A038935 A214627 A354215
KEYWORD
more,nonn
AUTHOR
Jason Earls, Sep 11 2002
STATUS
approved