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A079108 Number of 1's in the base 8 form of A077722(n). 0
3, 3, 3, 4, 3, 4, 5, 4, 5, 3, 4, 3, 5, 5, 5, 4, 3, 4, 5, 5, 5, 4, 5, 5, 4, 3, 4, 5, 5, 6, 6, 4, 5, 6, 8, 4, 5, 6, 6, 5, 3, 4, 4, 5, 6, 5, 3, 4, 6, 5, 6, 8, 6, 5, 4, 6, 8, 5, 5, 5, 6, 6, 8, 3, 4, 5, 4, 6, 6, 5, 6, 8, 4, 5, 5, 6, 5, 8, 4, 6, 8, 6, 8, 6, 8, 8, 8, 5, 6, 6, 5, 5, 5, 8, 4, 6, 6, 8, 8, 9, 6, 8, 5, 5, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..105.

EXAMPLE

a(5)=3 since A077722(5)=32833, which has an octal form of 100101, which has 3 ones.

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] := sum(b[i], i=1..nops(b)):fi:od:seq(a[k], k=1..s);

CROSSREFS

Cf. A077722.

Sequence in context: A084501 A198020 A098037 * A165605 A230194 A128112

Adjacent sequences:  A079105 A079106 A079107 * A079109 A079110 A079111

KEYWORD

nonn

AUTHOR

Francois Jooste (phukraut(AT)hotmail.com), Dec 23 2002

EXTENSIONS

More terms from Sascha Kurz, Feb 10 2003

STATUS

approved

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Last modified March 22 10:07 EDT 2019. Contains 321421 sequences. (Running on oeis4.)