OFFSET
1,4
COMMENTS
Sequences A031941, A037973, A037974, A037975 list numbers for which a(n)=1, a(n)=2, a(n)=3, a(n)=4. - M. F. Hasler, Jul 23 2013
A003462 gives the positions of records. - R. J. Mathar, Jul 26 2015
LINKS
R. J. Mathar, Table of n, a(n) for n = 1..1000
MAPLE
mRunLen := proc(L)
if nops(L) = 0 then
0;
else
a := 1 ;
for i from 2 to nops(L) do
if op(i, L) = op(i-1, L) then
a := a+1 ;
else
a := max(a, procname([op(i..nops(L), L)])) ;
break;
end if;
end do:
a ;
end if ;
end proc:
A043277 := proc(n)
convert(n, base, 3) ;
mRunLen(%) ;
end proc:
seq(A043277(n), n=1..100) ; # R. J. Mathar, Jul 26 2015
MATHEMATICA
Table[Max[Length/@Split[IntegerDigits[n, 3]]], {n, 90}] (* Harvey P. Dale, Aug 24 2019 *)
PROG
(PARI) A043277(n, b=3)={my(m, c=1); while(n>0, n%b==(n\=b)%b && c++ && next; m=max(m, c); c=1); m} \\ - M. F. Hasler, Jul 23 2013
CROSSREFS
KEYWORD
nonn,base
AUTHOR
STATUS
approved