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 A043045 a(n)=(s(n)+2)/3, where s(n)=n-th base 3 palindrome that starts with 1. 0
 1, 2, 4, 5, 6, 10, 14, 18, 28, 31, 34, 38, 41, 44, 48, 51, 54, 82, 94, 106, 110, 122, 134, 138, 150, 162, 244, 253, 262, 274, 283, 292, 304, 313, 322, 326, 335, 344, 356, 365, 374, 386, 395, 404, 408, 417, 426, 438, 447, 456, 468 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS MATHEMATICA b3pQ[n_]:=Module[{idn3=IntegerDigits[n, 3]}, idn3[[1]]==1&&Reverse[idn3] == idn3]; (#+2)/3&/@Select[Range[2000], b3pQ] (* Harvey P. Dale, Dec 08 2018 *) CROSSREFS Sequence in context: A171165 A039036 A219046 * A091678 A080053 A101964 Adjacent sequences:  A043042 A043043 A043044 * A043046 A043047 A043048 KEYWORD nonn,base,changed AUTHOR STATUS approved

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Last modified December 19 08:25 EST 2018. Contains 318245 sequences. (Running on oeis4.)