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 A068848 Smallest prime with same leading digits as 8^n. 1
 11, 83, 641, 51203, 40961, 327689, 2621447, 20971529, 167772161, 1342177283, 10737418247, 85899345923, 687194767367, 54975581388811, 43980465111043, 3518437208883211, 28147497671065609, 22517998136852483 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Table of n, a(n) for n=0..17. EXAMPLE a(3)=51203 because this is the smallest prime starting with 8^3=512. MAPLE for i from 1 to 40 do a := nextprime(8^i*10); b := 1; while(a-8^i*10^b>=10^b) do b := b+1; a := nextprime(8^i*10^b); end do; c[i] := a; end do:q := seq(c[i], i=1..40); CROSSREFS Cf. A068846, A068847. Sequence in context: A294831 A055369 A016282 * A167577 A129077 A152582 Adjacent sequences: A068845 A068846 A068847 * A068849 A068850 A068851 KEYWORD nonn,base AUTHOR Amarnath Murthy, Mar 10 2002 EXTENSIONS More terms from Sascha Kurz and Benoit Cloitre, Mar 17 2002 STATUS approved

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Last modified April 13 11:55 EDT 2024. Contains 371640 sequences. (Running on oeis4.)