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Search: id:A095828
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| 1, 3, 9, 19, 46, 93, 189, 379, 782, 1565, 3133, 6267, 12542, 25085, 50173, 100347, 200761, 401523, 803049, 1606099, 3212206, 6424413, 12848829, 25697659, 51395342, 102790685, 205581373, 411162747, 822325502, 1644651005, 3289302013, 6578604027, 13157208249
(list; graph; listen)
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OFFSET
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1,2
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LINKS
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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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FORMULA
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a(1) = 1; for n > 1, a(n+1) = 2*a(n) + A091839(n).
This roughly doubles at each step, and a(n) -> 1.5317006328915480... * 2^n.
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CROSSREFS
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Cf. A090822, A091839, A091411.
Sequence in context: A038163 A075188 A051894 this_sequence A028377 A091411 A102001
Adjacent sequences: A095825 A095826 A095827 this_sequence A095829 A095830 A095831
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KEYWORD
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nonn
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AUTHOR
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njas, Jul 10 2004
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