A045098 Numbers whose base-4 representation contains exactly two 1's and three 2's.

362, 410, 422, 425, 602, 614, 617, 662, 665, 677, 1130, 1178, 1190, 1193, 1322, 1418, 1442, 1448, 1451, 1454, 1466, 1514, 1562, 1574, 1577, 1610, 1634, 1640, 1643, 1646, 1658, 1670, 1673, 1682, 1688, 1691, 1694, 1697

Offset

1,1

Links

Table of n, a(n) for n=1..38.

Mathematica

Select[Range[1800], DigitCount[#, 4, 1]==2&&DigitCount[#, 4, 2]==3&] (* Harvey P. Dale, Sep 11 2011 *)

Crossrefs

Cf. A007090.

Sequence in context: A337729 A013765 A013891 * A158310 A031716 A243131

Adjacent sequences: A045095 A045096 A045097 * A045099 A045100 A045101

Keyword

nonn,base

Author

Clark Kimberling

Status

approved