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1, 3, 9, 24, 67, 196, 581, 1731, 5180, 15534, 46578, 139713, 419116
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| Each term is roughly 3 times the previous term.
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LINKS
| F. J. van de Bult, D. C. Gijswijt, J. P. Linderman, N. J. A. Sloane and A. R. Wilks, A Slow-Growing Sequence Defined by an Unusual Recurrence, J. Integer Sequences, Vol. 10 (2007), #07.1.2.
F. J. van de Bult, D. C. Gijswijt, J. P. Linderman, N. J. A. Sloane and A. R. Wilks, A Slow-Growing Sequence Defined by an Unusual Recurrence [pdf, ps].
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CROSSREFS
| Cf. A090822, A091579. A091588 is a smoothed version.
Sequence in context: A121907 A179176 A118771 * A018047 A090577 A047114
Adjacent sequences: A091584 A091585 A091586 * A091588 A091589 A091590
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Mar 05 2004
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EXTENSIONS
| a(10)-a(12) from John P. Linderman, May 30, 2004
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