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

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A037814 Number of i such that d(i) <= d(i-1), where Sum_{i=0..m} d(i)*7^i is the base-7 representation of n. 2
0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 2, 2, 1, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 2, 2, 2, 1, 1, 1, 1, 1, 2, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,57
LINKS
MAPLE
A037814 := proc(n)
a := 0 ;
dgs := convert(n, base, 7);
for i from 2 to nops(dgs) do
if op(i, dgs)<=op(i-1, dgs) then
a := a+1 ;
end if;
end do:
a ;
end proc: # R. J. Mathar, Oct 16 2015
CROSSREFS
Cf. A037830.
Sequence in context: A102673 A085297 A080972 * A179529 A118668 A273429
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
Sign in Name corrected by R. J. Mathar, Oct 16 2015
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 13 02:50 EDT 2024. Contains 374265 sequences. (Running on oeis4.)