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A199820 Primes of form 11^n-10^n. 2
331, 61051, 51159090448414546291 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The next term is too large to include (see A062577).

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..6

MATHEMATICA

Select[11^Range[3000]-10^Range[3000], PrimeQ]

PROG

(MAGMA) [ a: n in [0..300] | IsPrime(a) where a is 11^n-10^n ]

CROSSREFS

Cf. A062577.

Sequence in context: A237475 A060894 A002228 * A255389 A133141 A231755

Adjacent sequences:  A199817 A199818 A199819 * A199821 A199822 A199823

KEYWORD

nonn,bref

AUTHOR

Vincenzo Librandi, Nov 21 2011

STATUS

approved

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Last modified January 25 03:49 EST 2020. Contains 331241 sequences. (Running on oeis4.)