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A089774
Primes of the form 1 followed by powers of 3.
0
11, 13, 19, 127, 181, 16561, 1177147, 110460353203, 1847288609443, 1328256967394537077627, 119088056323407827075424486287615602692670648963, 1123329495011708990974900260817232214728824366796574324605061468433916083
OFFSET
1,1
EXAMPLE
A000040(91273) = 1177147 = 10^6 + 3^11, therefore 1177147 is a term.
CROSSREFS
Sequence in context: A288878 A102907 A235479 * A346287 A330975 A351841
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Nov 23 2003
EXTENSIONS
One more term from Reinhard Zumkeller, Oct 18 2004
5 more terms from David Wasserman, Oct 12 2005
STATUS
approved