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A175046 Write n in binary, then increase each run of 0's by one 0, and increase each run of 1's by one 1. a(n) is the decimal equivalent of the result. 8
3, 12, 7, 24, 51, 28, 15, 48, 99, 204, 103, 56, 115, 60, 31, 96, 195, 396, 199, 408, 819, 412, 207, 112, 227, 460, 231, 120, 243, 124, 63, 192, 387, 780, 391, 792, 1587, 796, 399, 816, 1635, 3276, 1639, 824, 1651, 828, 415, 224, 451, 908, 455, 920, 1843, 924 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

EXAMPLE

6 in binary is 110. Increase each run by one digit to get 11100, which is 28 in decimal. So a(6) = 28.

PROG

(Haskell)

import Data.List (group)

a175046 = foldr (\b v -> 2 * v + b) 0 .

          concatMap (\bs@(b:_) -> b : bs) . group . a030308_row

-- Reinhard Zumkeller, Jul 05 2013

CROSSREFS

Cf. A175047, A175048.

Cf. A030308, A007088.

Sequence in context: A214401 A009781 A266913 * A093855 A013188 A234947

Adjacent sequences:  A175043 A175044 A175045 * A175047 A175048 A175049

KEYWORD

base,nonn

AUTHOR

Leroy Quet, Dec 02 2009

EXTENSIONS

Extended by Ray Chandler, Dec 18 2009

STATUS

approved

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Last modified December 6 03:02 EST 2016. Contains 278771 sequences.