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A006735 Bond percolation series for hexagonal net. 2
1, -1, -4, -12, -45, -188, -835, -3849, -18242, -88265, -434295, -2165198, -10915089, -55534781, -284708699, -1470350760, -7628363273, -39878267745, -208458228964, -1103369168956, -5771541600014 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

I. Jensen, Table of n, a(n) for n = 0..36 [from link below]

I. Jensen, More terms

Iwan Jensen, Anthony J. Guttmann, Series expansions of the percolation probability for directed square and honeycomb lattices, J. Phys. A 28 (1995), no. 17, 4813-4833.

CROSSREFS

Cf. A030131.

Sequence in context: A149369 A151432 A188312 * A166115 A027288 A149370

Adjacent sequences:  A006732 A006733 A006734 * A006736 A006737 A006738

KEYWORD

sign

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified January 16 03:51 EST 2019. Contains 319184 sequences. (Running on oeis4.)