

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
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OFFSET

1,3


REFERENCES

Related to R. K. Guy, Unsolved Problems in Number Theory, Section C16.


LINKS

Table of n, a(n) for n=1..50.
D. Tseng, Generalized nonaveraging integer sequences, Integers 12 (2012), no. 2, 275300.


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

John W. Layman


STATUS

approved



