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A079107
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Number of digits of A077722(n) written in base 8.
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0
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3, 4, 4, 5, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| a(5)=6 since A077722(5)=32833, which has an octal form of 100101 (6 digits).
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MAPLE
| s := 0:for n from 1 to 7000 do b := convert(n, base, 2): q := sum(b[i]*8^(i-1), i=1..nops(b)): if(isprime(q)) then s := s+1:a[s] := nops(b):fi: od:seq(a[k], k=1..s);
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CROSSREFS
| Cf. A077722.
Sequence in context: A204002 A198300 A054760 * A205837 A023963 A121500
Adjacent sequences: A079104 A079105 A079106 * A079108 A079109 A079110
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KEYWORD
| nonn,base
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AUTHOR
| Francois Jooste (phukraut(AT)hotmail.com), Dec 23 2002
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EXTENSIONS
| More terms from Sascha Kurz (sascha.kurz(AT)uni-bayreuth.de), Feb 10 2003
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