A089774 Primes of the form 1 followed by powers of 3.

11, 13, 19, 127, 181, 16561, 1177147, 110460353203, 1847288609443, 1328256967394537077627, 119088056323407827075424486287615602692670648963, 1123329495011708990974900260817232214728824366796574324605061468433916083

Offset

1,1

Links

Table of n, a(n) for n=1..12.

Example

A000040(91273) = 1177147 = 10^6 + 3^11, therefore 1177147 is a term.

Crossrefs

Sequence in context: A288878 A102907 A235479 * A346287 A330975 A351841

Adjacent sequences: A089771 A089772 A089773 * A089775 A089776 A089777

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