A043048 a(n)=(s(n)+2)/4, where s(n)=n-th base 4 palindrome that starts with 2.

1, 3, 9, 10, 11, 12, 33, 38, 43, 48, 129, 133, 137, 141, 146, 150, 154, 158, 163, 167, 171, 175, 180, 184, 188, 192, 513, 533, 553, 573, 578, 598, 618, 638, 643, 663, 683, 703, 708, 728, 748, 768, 2049, 2065, 2081, 2097, 2117, 2133

Offset

1,2

Links

Table of n, a(n) for n=1..48.

Crossrefs

Sequence in context: A181862 A329560 A330296 * A308421 A309349 A024574

Adjacent sequences: A043045 A043046 A043047 * A043049 A043050 A043051

Keyword

nonn,base

Author

Clark Kimberling

Status

approved