id:A006773 - OEIS Search Results

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Sum of squared spans of n-step polygons on square lattice.
(Formerly M3959)

+0
1

1, 5, 30, 186, 1164, 7344, 46732, 299604, 1932900, 12537542, 81705782, 534663812, 3511466838, 23136724382, 152888000934, 1012925595468, 6726766841438, 44767880394634 (list; graph; listen)

	OFFSET	`1,2`
	REFERENCES	`A. J. Guttmann and I. G. Enting, The size and number of rings on the square lattice, J. Phys. A 21 (1988), L165-L172.`
	CROSSREFS	`Adjacent sequences: A006770 A006771 A006772 this_sequence A006774 A006775 A006776` `Sequence in context: A052934 A136785 A076036 this_sequence A059273 A038744 A098663`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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Last modified October 7 08:31 EDT 2008. Contains 144667 sequences.

AT&T Labs Research