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A305370 Index of 2^n in A109812. 3
1, 2, 3, 5, 8, 15, 29, 50, 103, 164, 417, 649, 1324, 2684, 5348, 10226, 21298, 41538, 84652, 165034, 322262, 646648, 1283556, 2584860, 5163368 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

It would be nice to have a formula for a(n).

LINKS

Table of n, a(n) for n=0..24.

EXAMPLE

A109812(15) = 32 = 2^5, so a(5) = 15.

CROSSREFS

Cf. A109812, A113233.

Sequence in context: A049861 A130476 A096592 * A192571 A215525 A192645

Adjacent sequences:  A305367 A305368 A305369 * A305371 A305372 A305373

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jun 02 2018

EXTENSIONS

a(14)-a(22) from Chai Wah Wu, Jun 04 2018

a(23)-a(24) from Giovanni Resta, Jun 06 2018

STATUS

approved

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Last modified September 25 12:38 EDT 2021. Contains 347654 sequences. (Running on oeis4.)