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A043411
Numbers whose base-7 representation contains exactly three 4's.
0
228, 571, 914, 1257, 1404, 1453, 1502, 1551, 1572, 1579, 1586, 1593, 1596, 1597, 1598, 1599, 1601, 1602, 1607, 1614, 1649, 1698, 1943, 2286, 2629, 2972, 3315, 3658, 3805, 3854, 3903, 3952, 3973, 3980, 3987, 3994, 3997
OFFSET
1,1
CROSSREFS
Cf. A007093.
Sequence in context: A252221 A154519 A128808 * A172531 A258557 A206005
KEYWORD
nonn,base
STATUS
approved