OFFSET
1,1
COMMENTS
a[1..2] calculated using A081641[1..11]; a[3] <= 716174549.
LINKS
M. F. Hasler, Table of n, a(n) for n=1..339
FORMULA
{ a(n) } = { p = 2*m*A081641(k)+1 | k=1,2,...,oo and m=1,2,... such that p is prime and m has no factor of class > 13- }
CROSSREFS
KEYWORD
nonn
AUTHOR
M. F. Hasler, Apr 05 2007, Apr 21 2007
STATUS
approved