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A161770 n 1's followed by three 0's. 1
1000, 11000, 111000, 1111000, 11111000, 111111000, 1111111000, 11111111000, 111111111000, 1111111111000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Sequence A159741 written in base 2.

LINKS

Table of n, a(n) for n=1..10.

FORMULA

a(n) = 1000*(10^n-1)/9.

CROSSREFS

Cf. A159741.

Sequence in context: A017511 A326639 A017643 * A004632 A277397 A250449

Adjacent sequences:  A161767 A161768 A161769 * A161771 A161772 A161773

KEYWORD

nonn,easy,base

AUTHOR

Jaroslav Krizek, Jun 18 2009

EXTENSIONS

Edited by Charles R Greathouse IV, Oct 12 2009

STATUS

approved

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Last modified December 7 15:24 EST 2021. Contains 349581 sequences. (Running on oeis4.)