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 A228327 Start with 0. Successive digits in the sequence must differ by 2. Adjoin the smallest number not yet in the sequence. 3
 0, 2, 4, 6, 8, 64, 20, 24, 68, 642, 42, 46, 86, 420, 202, 424, 242, 464, 246, 468, 646, 864, 686, 868, 6420, 2020, 2024, 2420, 2424, 2464, 2468, 6424, 6464, 6468, 6864, 6868, 64202, 4202, 4242, 4246, 4642, 4646, 4686, 8642, 42020, 20202, 42024, 20242, 42420 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Is the sequence infinite? REFERENCES Eric Angelini, Posting to the Sequence Fans Mailing List, Aug 23 2013. LINKS Alois P. Heinz, Table of n, a(n) for n = 1..10000 CROSSREFS Cf. A228326, A228328. Sequence in context: A075401 A083145 A085920 * A081507 A115336 A119666 Adjacent sequences: A228324 A228325 A228326 * A228328 A228329 A228330 KEYWORD nonn,base,look AUTHOR N. J. A. Sloane, Aug 24 2013 EXTENSIONS More terms from Alois P. Heinz, Aug 25 2013 STATUS approved

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Last modified April 14 16:00 EDT 2024. Contains 371665 sequences. (Running on oeis4.)