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A306589 a(n) is the smallest positive integer that can be written as the sum or difference of exactly n but no fewer powers of 2 and 3. 0
1, 5, 21, 150 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Conjecture: The next terms are a(5) = 2581 and a(6) = 27438. - Eric Rowland, Jul 22 2019
LINKS
Melvyn B. Nathanson, Geometric group theory and arithmetic diameter, arXiv:1101.0786 [math.NT], 2011.
Satyanand Singh, Special Representations, Nathanson's Lambda Sequences and Explicit Bounds, Ph.D. Dissertation, CUNY Academic Works, 2014.
Satyanand Singh, Limit points of Nathanson's Lambda sequences, arXiv:1902.08814 [math.NT], 2019.
CROSSREFS
Cf. A000079 (powers of 2), A000244 (powers of 3).
Sequence in context: A220378 A230645 A228113 * A221513 A284231 A182825
KEYWORD
nonn,more
AUTHOR
Michel Marcus, Feb 26 2019
STATUS
approved

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Last modified April 23 01:19 EDT 2024. Contains 371906 sequences. (Running on oeis4.)