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A162648 Locations of patterns 1001 or 0110 in the Thue-Morse sequence A010060. 1
0, 4, 6, 8, 12, 16, 20, 22, 24, 28, 30, 32, 36, 38, 40, 44, 48, 52, 54, 56, 60, 64, 68, 70, 72, 76, 80, 84, 86, 88, 92, 94, 96, 100, 102, 104, 108, 112, 116, 118, 120, 124, 126, 128, 132, 134, 136, 140, 144, 148, 150, 152, 156, 158, 160, 164, 166, 168, 172, 176, 180 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Numbers n for which A010060(n+1) = A010060(n+2) = 1-A010060(n) and A010060(n+3) = A010060(n).

Or intersection of A121539, A161674, and A161579.

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = A079523(n) - 1.

MATHEMATICA

Select[Range[3500], MatchQ[IntegerDigits[#, 2], {b : (1) ..} | {___, 0, b : (1) ..} /; OddQ[Length[{b}]]] &] - 1 (* G. C. Greubel, Jan 05 2018 *)

PROG

(PARI) is(n)=my(v=vector(4, i, hammingweight(n+i-1))); v[1]==v[4] && v[1]!=v[2] && v[1]!=v[3] \\ Charles R Greathouse IV, Aug 20 2013

CROSSREFS

Cf. A161824, A161817, A161674, A161673, A161639, A161641, A161627, A161579, A161580, A121539, A131323, A036554, A010060, A079523, A081706.

Sequence in context: A097619 A113709 A076082 * A225512 A233036 A062554

Adjacent sequences:  A162645 A162646 A162647 * A162649 A162650 A162651

KEYWORD

nonn

AUTHOR

Vladimir Shevelev, Jul 08 2009

EXTENSIONS

More readable definition from R. J. Mathar, Sep 16 2009

STATUS

approved

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Last modified January 22 01:28 EST 2022. Contains 350481 sequences. (Running on oeis4.)