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A291962 Decimal repunits written in base 2. 0
0, 1, 1011, 1101111, 10001010111, 10101101100111, 11011001000000111, 100001111010001000111, 101010011000101011000111, 110100111110110101111000111, 1000010001110100011010111000111, 1010010110010001100001100111000111, 1100111011110101111010000000111000111 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Interpreting A002275 as binary numbers and converting to decimal gives A000225. This sequence gives the resulting terms of the "reverse" operation.

The n least significant bits of a(n) seem to converge to A088911 as n increases.

LINKS

Table of n, a(n) for n=0..12.

FORMULA

a(n) = A007088(A002275(n)).

MATHEMATICA

Table[FromDigits@ IntegerDigits[Floor[10^n/9], 2], {n, 0, 12}] (* Michael De Vlieger, Sep 06 2017 *)

PROG

(PARI) a(n) = subst(Pol(binary((10^n-1)/9)), x, 10)

CROSSREFS

Cf. A002275, A007088.

Sequence in context: A267613 A178396 A178349 * A094946 A158877 A159774

Adjacent sequences:  A291959 A291960 A291961 * A291963 A291964 A291965

KEYWORD

nonn,base,easy

AUTHOR

Felix Fröhlich, Sep 06 2017

STATUS

approved

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Last modified October 20 22:22 EDT 2021. Contains 348119 sequences. (Running on oeis4.)