A045087 Numbers whose base-4 representation contains no 1's and exactly two 2's.

10, 34, 40, 43, 46, 58, 130, 136, 139, 142, 160, 163, 172, 175, 178, 184, 187, 190, 202, 226, 232, 235, 238, 250, 514, 520, 523, 526, 544, 547, 556, 559, 562, 568, 571, 574, 640, 643, 652, 655, 688, 691, 700, 703, 706, 712, 715

Offset

1,1

Links

Table of n, a(n) for n=1..47.

Crossrefs

Cf. A007090.

Sequence in context: A219848 A320565 A177221 * A324746 A119086 A195900

Adjacent sequences: A045084 A045085 A045086 * A045088 A045089 A045090

Keyword

nonn,base

Author

Clark Kimberling

Status

approved