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A065539 a(n) is smallest prime > 10*a(n-1), a(1) = 13. 0
13, 131, 1319, 13217, 132173, 1321753, 13217531, 132175313, 1321753177, 13217531771, 132175317727, 1321753177271, 13217531772769, 132175317727727, 1321753177277287, 13217531772772933, 132175317727729369 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

MATHEMATICA

NextPrim[n_Integer] := Block[ {k = n + 1}, While[ !PrimeQ[k], k++ ]; Return[k]]; a[1] = 13; a[n_] := NextPrim[ 10*a[n - 1]]; Table[ a[n], {n, 1, 20} ]

CROSSREFS

Cf. A065122.

Sequence in context: A037708 A142740 A037582 * A048554 A161498 A037715

Adjacent sequences:  A065536 A065537 A065538 * A065540 A065541 A065542

KEYWORD

nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 28 2001

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Last modified February 17 16:49 EST 2012. Contains 206058 sequences.