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A177027 Primes of the form 11^n+3^n-1. 1
13, 19489357, 2357967373, 23225154419887808146560828362864653 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..4.

FORMULA

a(n) = 11^A177030(n)+3^A177030(n)-1.

PROG

(MAGMA) [ a: n in [0..350] | IsPrime(a) where a is 11^n+3^n-1^n]

CROSSREFS

Cf. A155623, A177030

Sequence in context: A185213 A034248 A324270 * A158750 A145744 A174309

Adjacent sequences:  A177024 A177025 A177026 * A177028 A177029 A177030

KEYWORD

nonn,less

AUTHOR

Vincenzo Librandi, Dec 09 2010

STATUS

approved

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Last modified July 19 12:49 EDT 2019. Contains 325159 sequences. (Running on oeis4.)