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A043048
a(n)=(s(n)+2)/4, where s(n)=n-th base 4 palindrome that starts with 2.
0
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
CROSSREFS
Sequence in context: A181862 A329560 A330296 * A308421 A309349 A024574
KEYWORD
nonn,base
STATUS
approved