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A121778
Series expansion for mean-squared radius of gyration of directed and convex polygons on square lattice.
1
0, 8, 66, 522, 3772, 25138, 157212, 935140, 5343160, 29541450, 158920172, 835390460, 4305416136, 21812985652, 108875244952, 536326527048, 2611304032624, 12582098181466, 60058408242252, 284257070075212
OFFSET
1,2
CROSSREFS
Sequence in context: A051825 A218927 A303485 * A037501 A037678 A190331
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Aug 30 2006
STATUS
approved