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A005499 Triangulations of the disk G_{3,n}.
(Formerly M3942)
2
5, 26, 119, 538, 2310, 9882, 41715, 175088, 730626, 3037510, 12584726, 52003792, 214401024, 882233898, 3624161175, 14865947668, 60898934250, 249184153548, 1018532686314, 4159265561360, 16970015555220, 69183689403686 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Table of n, a(n) for n=0..21.

William G. Brown, Enumeration of Triangulations of the Disk, Proc. Lond. Math. Soc. s3-14 (1964) 746-768.

W. G. Brown, Enumeration of Triangulations of the Disk, Proc. Lond. Math. Soc. s3-14 (1964) 746-768. [Annotated scanned copy]

MAPLE

A005499 := proc(n)

        BrownG(3, n) ;

end proc:  # take BrownG from A210696

seq(A005499(n), n=0..25) ; # R. J. Mathar, Mar 30 2012

CROSSREFS

A row or column of the array in A262586.

Sequence in context: A002316 A293799 A211606 * A185552 A171702 A254825

Adjacent sequences:  A005496 A005497 A005498 * A005500 A005501 A005502

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified May 7 15:02 EDT 2021. Contains 343650 sequences. (Running on oeis4.)