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A045122
Numbers whose base-4 representation contains exactly two 1's and three 3's.
0
383, 479, 503, 509, 863, 887, 893, 983, 989, 1013, 1151, 1247, 1271, 1277, 1343, 1471, 1487, 1519, 1523, 1531, 1532, 1534, 1663, 1759, 1783, 1789, 1823, 1847, 1853, 1871, 1903, 1907, 1915, 1916, 1918, 1951, 1975, 1981
OFFSET
1,1
CROSSREFS
Cf. A007090.
Sequence in context: A204861 A015861 A072385 * A064721 A252060 A046014
KEYWORD
nonn,base
STATUS
approved