The OEIS is supported by the many generous donors to the OEIS Foundation.
%I #10 Apr 24 2021 02:04:52
%S 259,1339,1519,1549,1554,1556,1557,1558,1559,1561,1567,1573,1579,1591,
%T 1627,1663,1699,1771,1987,2203,2419,2851,4147,5443,6739,7819,7999,
%U 8029,8034,8036,8037,8038,8039,8041,8047,8053,8059
%N Numbers having four 1's in base 6.
%Y Cf. A007092.
%K nonn,base
%O 1,1
%A _Clark Kimberling_