A353143 Decimal repunits written in base 4.

0, 1, 23, 1233, 101113, 2231213, 123020013, 10033101013, 222120223013, 12213312233013, 1002032203113013, 22112101201213013, 1213132233100013013, 100022303120201013013, 2201230001311023013013, 121100320102103233013013, 3330220302313011113013013

Offset

0,3

Links

Table of n, a(n) for n=0..16.

Formula

a(n) = A007090(A002275(n)).

Prog

(PARI) a(n) = fromdigits(digits((10^n-1)/9, 4));

Crossrefs

Cf. A002275, A291962, A353142, A353144, A353145, A353146, A353147, A353148.

Cf. A002450, A007090.

Sequence in context: A061063 A372207 A100768 * A201309 A049003 A268961

Adjacent sequences: A353140 A353141 A353142 * A353144 A353145 A353146

Keyword

nonn,base,easy

Author

Seiichi Manyama, Apr 26 2022

Status

approved