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A038728 Configurations of linear chains. 0
0, 0, 0, 0, 2240, 35840, 433040, 4862560, 51759280 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

REFERENCES

A. M. Nemirovsky et al., Marriage of exact enumeration and 1/d expansion methods: lattice model of dilute polymers, J. Statist. Phys., 67 (1992), 1083-1108; see Eq 4b.

LINKS

Table of n, a(n) for n=1..9.

CROSSREFS

Sequence in context: A205038 A079013 A186865 * A002520 A183771 A251051

Adjacent sequences:  A038725 A038726 A038727 * A038729 A038730 A038731

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, May 02 2000

STATUS

approved

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Last modified December 25 16:51 EST 2014. Contains 252578 sequences.