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A000310
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Coefficients of iterated exponentials.
(Formerly M3612 N1464)
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8
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1, 4, 26, 234, 2696, 37919, 630521, 12111114, 264051201, 6445170229, 174183891471, 5164718385337, 166737090160871, 5822980248613990, 218756388226681557, 8797723991458469015, 377159237609540937788
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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REFERENCES
| J. Ginsburg, Iterated exponentials, Scripta Math., 11 (1945), 340-353.
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
| T. D. Noe, Table of n, a(n) for n=1..100
P. J. Cameron, Sequences realized by oligomorphic permutation groups, J. Integ. Seqs. Vol. 3 (2000), #00.1.5.
INRIA Algorithms Project, Encyclopedia of Combinatorial Structures 300
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FORMULA
| E.g.f.: -ln(1+ln(1+ln(1+ln(1-x)))).
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CROSSREFS
| a(n)=|A039816(n, 1)| (first column of triangle). Cf. A003713, A000268, A000359, A000406, A001765.
Sequence in context: A107879 A066224 A136227 * A054360 A124824 A000311
Adjacent sequences: A000307 A000308 A000309 * A000311 A000312 A000313
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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