A083187 - OEIS

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

A083187

a(n) = floor(log_3/2(n+1)) - floor(log_3/2(n)).

1, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0

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

OFFSET

1,1

COMMENTS

a(n) = 1 for n in A002379.

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..65537

Index entries for characteristic functions

PROG

(PARI) for(n=1, 100, print1(floor(log(n+1)/log(3/2))-floor(log(n)/log(3/2))", "))

(PARI)

A002379(n) = ((3^n)>>n); \\ This function from Charles R Greathouse IV, Jun 10 2011