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OFFSET
| 1,1
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COMMENTS
| The only currently known primes of the form 11^n - 2 correspond to numbers n = {4, 6}. Last digit of a(n) is 9.
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EXAMPLE
| a(1) = 11^4 - 2 = 14639,
a(2) = 11^6 - 2 = 1771559.
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CROSSREFS
| Cf. A104096 = Largest prime <= 11^n. Cf. A130652 = 11^n - 2. Cf. A128472 = smallest prime of the form (2n-1)^k - 2 for k>(2n-1). Cf. A084714 = smallest prime of the form (2n-1)^k - 2. Cf. A014224, A109080, A090669, A128455, A128457, A128458, A128459, A128460, A128461.
Sequence in context: A153428 A032736 A032738 * A023683 A017284 A017392
Adjacent sequences: A133855 A133856 A133857 * A133859 A133860 A133861
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KEYWORD
| bref,hard,more,nonn
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AUTHOR
| Alexander Adamchuk (alex(AT)kolmogorov.com), Sep 27 2007
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