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A091588 A smoothed version of A091587 (but still mysterious). 4
1, 3, 8, 24, 67, 195, 580, 1730, 5179, 15533, 46578, 139712, 419115, 1257319 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Each term is roughly 3 times the previous term.

LINKS

Table of n, a(n) for n=0..13.

F. J. van de Bult, D. C. Gijswijt, J. P. Linderman, N. J. A. Sloane and Allan 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 Allan Wilks, A Slow-Growing Sequence Defined by an Unusual Recurrence [pdf, ps].

Index entries for sequences related to Gijswijt's sequence

FORMULA

I would very much like a formula for this sequence!

CROSSREFS

Records in A091839. Cf. A090822, A091587, A091587, A217590.

Sequence in context: A096886 A176904 A056332 * A297219 A018046 A095125

Adjacent sequences:  A091585 A091586 A091587 * A091589 A091590 A091591

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Mar 05 2004

EXTENSIONS

a(10)-a(13) from Allan Wilks, Mar 10 2004

STATUS

approved

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Last modified June 24 04:38 EDT 2019. Contains 324318 sequences. (Running on oeis4.)