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A043047 a(n)=(s(n)+3)/4, where s(n)=n-th base 4 palindrome that starts with 1. 1
1, 2, 5, 6, 7, 8, 17, 22, 27, 32, 65, 69, 73, 77, 82, 86, 90, 94, 99, 103, 107, 111, 116, 120, 124, 128, 257, 277, 297, 317, 322, 342, 362, 382, 387, 407, 427, 447, 452, 472, 492, 512, 1025, 1041, 1057, 1073, 1093, 1109, 1125, 1141 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..50.

CROSSREFS

Sequence in context: A220655 A246263 A191205 * A271107 A014355 A048972

Adjacent sequences:  A043044 A043045 A043046 * A043048 A043049 A043050

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified June 29 12:13 EDT 2017. Contains 288860 sequences.