A353148 Decimal repunits written in base 9.

0, 1, 12, 133, 1464, 16215, 178366, 2073137, 22814518, 252060710, 2772667811, 31610457022, 347715137243, 3835866520674, 43305642727525, 476363171113776, 5351104882252647, 58862154814780228, 658583714063682520, 7355531854711617721, 82021851512827806032

Offset

0,3

Links

Table of n, a(n) for n=0..20.

Formula

a(n) = A007095(A002275(n)).

a(n) = (A055479(n) - 1)/10. - Hugo Pfoertner, Apr 26 2022

Prog

(PARI) a(n) = fromdigits(digits((10^n-1)/9, 9));

Crossrefs

Cf. A002275, A291962, A353142, A353143, A353144, A353145, A353146, A353147.

Cf. A002452, A007095, A055479.

Sequence in context: A120674 A244205 A016123 * A015457 A015469 A144785

Adjacent sequences: A353145 A353146 A353147 * A353149 A353150 A353151

Keyword

nonn,base,easy

Author

Seiichi Manyama, Apr 26 2022

Status

approved