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A227471 Position of first 0 in the binary representation of prime(n), starting the count of positions at 1 for the least significant bit. 0
1, 3, 2, 4, 3, 2, 2, 3, 4, 2, 6, 2, 2, 3, 5, 2, 3, 2, 3, 4, 2, 5, 3, 2, 2, 2, 4, 3, 2, 2, 8, 3, 2, 3, 2, 4, 2, 3, 4, 2, 3, 2, 7, 2, 2, 4, 3, 6, 3, 2, 2, 5, 2, 3, 2, 4, 2, 5, 2, 2, 3, 2, 3, 4, 2, 2, 3, 2, 3, 2, 2, 4, 5, 2, 3, 8, 2, 2, 2, 2, 3, 2, 5, 2, 4, 3, 2, 2, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

If no zero appears in the base-2 representation, the search "falls through" and addresses the (virtual) leading zero of that prime, see A035100. - R. J. Mathar, Jul 20 2013

LINKS

Table of n, a(n) for n=1..89.

FORMULA

a(n) = 1+A023512(n). - Antti Karttunen, Jul 13 2013

CROSSREFS

Cf. A004676, A023512.

Sequence in context: A016559 A104566 A143156 * A101403 A025509 A130079

Adjacent sequences:  A227468 A227469 A227470 * A227472 A227473 A227474

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov, Jul 12 2013

STATUS

approved

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Last modified April 4 21:43 EDT 2020. Contains 333238 sequences. (Running on oeis4.)