A028903 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A028903

Map n = Sum c_i 10^i to a(n) = Sum c_i 8^i.

2

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 56, 57, 58, 59

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,3

LINKS

Alan Michael Gómez Calderón, Table of n, a(n) for n = 0..10000

MAPLE

A028903 := proc(n)

convert(n, base, 10) ;

add(op(i, %) *8^(i-1), i=1..nops(%) ) ;

end proc:

seq(A028903(n), n=0..100) ; # R. J. Mathar, May 25 2023

PROG

(PARI) a(n) = fromdigits(digits(n), 8); \\ Alan Michael Gómez Calderón, Sep 28 2025

CROSSREFS

Sequence in context: A341191 A232897 A309166 * A081599 A381491 A289642

Adjacent sequences: A028900 A028901 A028902 * A028904 A028905 A028906

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Erich Friedman.

STATUS

approved