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A122656 n*floor(n/2)^2. 1
0, 0, 2, 3, 16, 20, 54, 63, 128, 144, 250, 275, 432, 468, 686, 735, 1024, 1088, 1458, 1539, 2000, 2100, 2662, 2783, 3456, 3600, 4394, 4563, 5488, 5684, 6750, 6975, 8192, 8448, 9826, 10115, 11664, 11988, 13718, 14079, 16000, 16400, 18522, 18963, 21296, 21780 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

COMMENTS

Szeged index of cycle of length n.

REFERENCES

J. Zerovnik, Szeged index of symmetric graphs, J. Chem. Inf. Comput. Sci., 39 (1999), 77-80.

CROSSREFS

Sequence in context: A167605 A043308 A061918 * A171458 A044905 A045877

Adjacent sequences:  A122653 A122654 A122655 * A122657 A122658 A122659

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Sep 22 2006

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Last modified February 14 20:13 EST 2012. Contains 205663 sequences.