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A102906 Primes of the form 3^n+28=3^n+27+1. 0
31, 37, 109, 271, 757, 59077, 4782997, 43046749, 847288609471, 717897987691852588770277, 58149737003040059690390197, 30903154382632612361920641803557, 1824800363140073127359051977856583949 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

FORMULA

If 3^n+28 is prime then a[m]=3^n+28

MATHEMATICA

a = Delete[Union[Flatten[Table[If [PrimeQ[3^n + 28] == True, 3^n + 28, 0], {n, 1, 200}]]], 1]

CROSSREFS

Sequence in context: A107013 A107012 A170853 * A062213 A097759 A053237

Adjacent sequences:  A102903 A102904 A102905 * A102907 A102908 A102909

KEYWORD

nonn

AUTHOR

Roger Lee Bagula (rlbagulatftn(AT)yahoo.com), Mar 01 2005

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Last modified February 14 11:36 EST 2012. Contains 205623 sequences.