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A171946
N-positions for game of UpMark.
6
0, 2, 4, 5, 6, 8, 10, 12, 13, 14, 16, 17, 18, 20, 21, 22, 24, 26, 28, 29, 30, 32, 34, 36, 37, 38, 40, 42, 44, 45, 46, 48, 49, 50, 52, 53, 54, 56, 58, 60, 61, 62, 64, 65, 66, 68, 69, 70, 72, 74, 76, 77, 78, 80, 81, 82, 84, 85, 86, 88, 90, 92, 93, 94, 96, 98
OFFSET
1,2
COMMENTS
It appears that this is the sequence of positions of 0 in the 1-limiting word of the morphism 0 -> 10, 1 -> 00; see A284948. - Clark Kimberling, Apr 18 2017
It appears that this sequence gives the positions of 1 in the limiting 0-word of the morphism 0->11, 1-> 01. See A285383. - Clark Kimberling, Apr 26 2017
Apparently a(n) = 1+A003159(n-1). - R. J. Mathar, Jun 24 2021
LINKS
Aviezri S. Fraenkel, The vile, dopey, evil and odious game players, Discrete Math. 312 (2012), no. 1, 42-46.
PROG
(Haskell)
import Data.List (delete)
a171946 n = a171946_list !! (n-1)
a171946_list = 0 : f [2..] where
f (w:ws) = w : f (delete (2 * w - 1) ws)
-- Reinhard Zumkeller, Oct 26 2014
CROSSREFS
Complement of A171947.
Sequence in context: A284818 A192584 A337140 * A285385 A026435 A026437
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Oct 29 2010
STATUS
approved