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A065534
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a(n) is smallest prime > 10*a(n-1), a(1) = 5.
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1
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5, 53, 541, 5413, 54133, 541339, 5413391, 54133921, 541339231, 5413392311, 54133923121, 541339231241, 5413392312463, 54133923124643, 541339231246433, 5413392312464369, 54133923124643743, 541339231246437473
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| Harry J. Smith, Table of n, a(n) for n=1,...,100
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MATHEMATICA
| NextPrim[n_Integer] := Block[ {k = n + 1}, While[ !PrimeQ[k], k++ ]; Return[k]]; a[1] = 5; a[n_] := NextPrim[ 10*a[n - 1]]; Table[ a[n], {n, 1, 20} ]
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PROG
| (PARI) { for (n=1, 100, if (n>1, a=nextprime(10*a), a=5); write("b065534.txt", n, " ", a) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Oct 21 2009]
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CROSSREFS
| Cf. A065122.
Sequence in context: A058390 A198963 A069592 * A186206 A123788 A036910
Adjacent sequences: A065531 A065532 A065533 * A065535 A065536 A065537
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KEYWORD
| nonn
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 28 2001
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