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A043407
Numbers whose base-7 representation contains exactly three 3's.
0
171, 514, 857, 1053, 1102, 1151, 1179, 1186, 1193, 1197, 1198, 1199, 1201, 1202, 1203, 1207, 1214, 1221, 1249, 1298, 1347, 1543, 1886, 2229, 2572, 2915, 3258, 3454, 3503, 3552, 3580, 3587, 3594, 3598, 3599, 3600, 3602
OFFSET
1,1
CROSSREFS
Cf. A007093.
Sequence in context: A185610 A185837 A016057 * A031691 A158220 A079654
KEYWORD
nonn,base
STATUS
approved