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A001027 Powers of 18.
(Formerly M5062 N2192)
+0
5
1, 18, 324, 5832, 104976, 1889568, 34012224, 612220032, 11019960576, 198359290368, 3570467226624, 64268410079232, 1156831381426176, 20822964865671168, 374813367582081024, 6746640616477458432 (list; graph; listen)
OFFSET

0,2

REFERENCES

S. Plouffe, Approximations de S\'{e}ries G\'{e}n\'{e}ratrices et Quelques Conjectures}, Dissertation, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.

LINKS

S. Plouffe, Approximations de S\'{e}ries G\'{e}n\'{e}ratrices et Quelques Conjectures}, Dissertation, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.

S. Plouffe, 1031 Generating Functions and Conjectures, Universit\'{e} du Qu\'{e}bec \`{a} Montr\'{e}al, 1992.

Tanya Khovanova, Recursive Sequences

Y. Puri and T. Ward, Arithmetic and growth of periodic orbits, J. Integer Seqs., Vol. 4 (2001), #01.2.1.

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 282

FORMULA

G.f.: 1/(1-18x), e.g.f.: exp(18x)

MAPLE

A001027:=-1/(-1+18*z); [Conjectured by S. Plouffe in his 1992 dissertation.]

CROSSREFS

Sequence in context: A097831 A091045 A049660 this_sequence A041145 A041614 A068771

Adjacent sequences: A001024 A001025 A001026 this_sequence A001028 A001029 A001030

KEYWORD

nonn

AUTHOR

njas

EXTENSIONS

More terms from James A. Sellers (sellersj(AT)math.psu.edu), Sep 19 2000

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.


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