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 A037021 Greedy sequence such that no term is the average of four others. 0
 0, 1, 2, 3, 5, 7, 13, 26, 27, 28, 29, 31, 122, 123, 124, 125, 127, 129, 135, 148, 149, 150, 151, 153, 610, 611, 612, 613, 615, 617, 623, 636, 637, 638, 639, 641, 732, 733, 734, 735, 737, 739, 745, 758, 759, 760, 761, 763, 3050, 3051 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 REFERENCES Related to R. K. Guy, Unsolved Problems in Number Theory, Section C16. LINKS D. Tseng, Generalized nonaveraging integer sequences, Integers 12 (2012), no. 2, 275-300. FORMULA Terms are integers of the form 122A+R, where A has 0's and 1's in its base 5 expansion, and R is in the set {0, 1, 2, 3, 5, 7, 13, 26, 27, 28, 29, 31}. - Dennis Tseng, Jul 19 2013 CROSSREFS Sequence in context: A227627 A335116 A135372 * A114741 A096177 A075238 Adjacent sequences:  A037018 A037019 A037020 * A037022 A037023 A037024 KEYWORD nonn AUTHOR STATUS approved

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Last modified May 18 15:25 EDT 2021. Contains 343995 sequences. (Running on oeis4.)