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A045102
Numbers whose base-4 representation contains exactly three 1's and two 2's.
0
346, 358, 361, 406, 409, 421, 598, 601, 613, 661, 1114, 1126, 1129, 1174, 1177, 1189, 1306, 1318, 1321, 1354, 1378, 1384, 1387, 1390, 1402, 1414, 1417, 1426, 1432, 1435, 1438, 1441, 1444, 1447, 1453, 1462, 1465, 1498
OFFSET
1,1
MATHEMATICA
Select[Range[1500], DigitCount[#, 4, 1]==3&&DigitCount[#, 4, 2]==2&] (* Harvey P. Dale, May 15 2017 *)
CROSSREFS
Cf. A007090.
Sequence in context: A048904 A139266 A063536 * A225934 A287700 A281163
KEYWORD
nonn,base
STATUS
approved