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A045024
Numbers whose base-4 representation contains exactly two 0's and one 1.
1
16, 66, 67, 72, 76, 96, 112, 129, 132, 144, 193, 196, 208, 266, 267, 270, 271, 290, 291, 296, 300, 306, 307, 312, 316, 386, 387, 392, 396, 416, 432, 450, 451, 456, 460, 480, 496, 518, 519, 521, 525, 530, 531, 536, 540, 545, 548
OFFSET
1,1
LINKS
MATHEMATICA
Select[Range[8000], DigitCount[#, 4, 0] == 2 && DigitCount[#, 4, 1] == 1 &] (* Vincenzo Librandi, Sep 22 2016 *)
CROSSREFS
Cf. A007090.
Sequence in context: A253673 A041494 A057689 * A043153 A039330 A043933
KEYWORD
nonn,base
STATUS
approved