A045094 Numbers whose base-4 representation contains exactly one 1 and four 2's.

426, 618, 666, 678, 681, 1194, 1578, 1674, 1698, 1704, 1707, 1710, 1722, 1770, 1962, 2154, 2202, 2214, 2217, 2346, 2442, 2466, 2472, 2475, 2478, 2490, 2538, 2586, 2598, 2601, 2634, 2658, 2664, 2667, 2670, 2682, 2694

Offset

1,1

Links

Table of n, a(n) for n=1..37.

Mathematica

Select[Range[3000], DigitCount[#, 4, 1]==1&&DigitCount[#, 4, 2]==4&] (* Harvey P. Dale, Jun 07 2019 *)

Crossrefs

Cf. A007090.

Sequence in context: A207013 A048922 A305267 * A252411 A236605 A236699

Adjacent sequences: A045091 A045092 A045093 * A045095 A045096 A045097

Keyword

nonn,base

Author

Clark Kimberling

Status

approved