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A081769 a(n)-th term of the continued fraction for sum(k>=0,1/2^(2^k)) is 2. 0
5, 13, 18, 23, 25, 30, 38, 43, 45, 53, 58, 60, 65, 70, 78, 83, 85, 93, 98, 103, 105, 110, 118, 120, 125, 133, 138, 140, 145, 150, 158, 163, 165, 173, 178, 183, 185, 190, 198, 203, 205, 213, 218, 220, 225, 230, 238, 240, 245, 253, 258, 263, 265, 270, 278, 280 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..56.

FORMULA

a(n)=5*n + 0 or + 3 and it appears that a(n)=5*n+3*A073089(n+2)

EXAMPLE

The continued fraction for sum(k>=0,1/2^(2^k)) is : 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1... hence a(1)=5

CROSSREFS

Cf. A006466, A073089.

Sequence in context: A347475 A294136 A120062 * A188030 A101864 A190432

Adjacent sequences:  A081766 A081767 A081768 * A081770 A081771 A081772

KEYWORD

easy,nonn

AUTHOR

Benoit Cloitre, Apr 09 2003

STATUS

approved

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Last modified January 26 13:42 EST 2022. Contains 350598 sequences. (Running on oeis4.)