A045117 Numbers whose base-4 representation contains exactly one 1 and three 3's.

127, 223, 247, 253, 319, 447, 463, 495, 499, 507, 508, 510, 639, 735, 759, 765, 799, 823, 829, 847, 879, 883, 891, 892, 894, 927, 951, 957, 967, 973, 979, 987, 988, 990, 999, 1005, 1009, 1012, 1014, 1017, 1087, 1215, 1231

Offset

1,1

Links

Table of n, a(n) for n=1..43.

Crossrefs

Cf. A007090.

Sequence in context: A325078 A276261 A343319 * A178700 A142466 A268860

Adjacent sequences: A045114 A045115 A045116 * A045118 A045119 A045120

Keyword

nonn,base

Author

Clark Kimberling

Status

approved