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A039005
Numbers whose base-4 representation has the same number of 1's and 3's.
2
0, 2, 7, 8, 10, 13, 19, 27, 28, 30, 32, 34, 39, 40, 42, 45, 49, 52, 54, 57, 67, 75, 76, 78, 95, 99, 107, 108, 110, 112, 114, 119, 120, 122, 125, 128, 130, 135, 136, 138, 141, 147, 155, 156, 158, 160, 162, 167, 168, 170, 173, 177, 180, 182, 185, 193, 196, 198
OFFSET
1,2
LINKS
CROSSREFS
Cf. A004171 (subsequence).
Sequence in context: A199004 A168064 A243167 * A022431 A356671 A047525
KEYWORD
nonn,base,easy
STATUS
approved