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 A091678 In base 4, numbers n of the form k + reverse(k) for at least one k. 2
 0, 2, 4, 5, 6, 10, 15, 17, 20, 25, 30, 33, 34, 41, 42, 50, 51, 58, 59, 65, 67, 68, 75, 76, 84, 85, 92, 93, 101, 102, 105, 109, 110, 118, 125, 126, 130, 145, 150, 165, 170, 185, 190, 195, 210, 215, 230, 235, 250, 255, 257, 260, 275, 280, 289, 295, 300, 315, 320, 321 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Base-4 analog of A067030. Complement of A091679. LINKS EXAMPLE 25 is a term since 25 (decimal) = 121 = 110 + 011 = 20 (decimal) + 5 (decimal). CROSSREFS Cf. A035524, A091679, A067030. Sequence in context: A039036 A219046 A043045 * A080053 A101964 A294812 Adjacent sequences:  A091675 A091676 A091677 * A091679 A091680 A091681 KEYWORD base,easy,nonn AUTHOR Klaus Brockhaus, Jan 28 2004 STATUS approved

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Last modified September 21 07:28 EDT 2021. Contains 347596 sequences. (Running on oeis4.)