OFFSET
1,3
MAPLE
A130232 := proc(n)
option remember;
if n = 1 then
0;
else
a := procname(n-1) ;
for j from 1 to n-1 do
for d in convert(procname(j), base, 10) do
if d = 0 then
a := a+1 ;
end if;
end do:
end do:
a+1 ;
end if;
end proc:
seq(A130232(n), n=1..80) ; # R. J. Mathar, Aug 06 2016
PROG
(Python)
A130232_list, c = [0], 1
for _ in range(100):
c += str(A130232_list[-1]).count('0') # Chai Wah Wu, Jun 06 2021
CROSSREFS
KEYWORD
base,easy,nonn
AUTHOR
Eric Angelini, Aug 05 2007
EXTENSIONS
Corrected by R. J. Mathar, Aug 06 2016
STATUS
approved