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A045287
Numbers whose base-5 representation contains exactly two 2's and two 4's.
0
324, 364, 372, 564, 572, 612, 949, 989, 997, 1189, 1197, 1237, 1324, 1364, 1372, 1449, 1489, 1497, 1524, 1549, 1599, 1604, 1609, 1619, 1620, 1621, 1623, 1699, 1739, 1747, 1764, 1772, 1789, 1797, 1804, 1809, 1819, 1820
OFFSET
1,1
MATHEMATICA
Select[Range[2000], DigitCount[#, 5, 2]==DigitCount[#, 5, 4]==2&] (* Harvey P. Dale, Aug 09 2017 *)
CROSSREFS
Cf. A007091.
Sequence in context: A272298 A088214 A117550 * A096526 A111278 A241502
KEYWORD
nonn,base
STATUS
approved