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A260777
Sum of squares of end-to-end distances for self-avoiding walks on the Manhattan lattice.
0
1, 6, 20, 56, 141, 328, 732, 1584, 3339, 6894, 14018, 28132, 55819, 109668, 213711, 413520, 795041, 1519632, 2890050, 5471864, 10317249, 19378344, 36273795, 67690580, 125950933, 233715516, 432618758, 798985468, 1472443438, 2708024388, 4971153360, 9109787516, 16666330020, 30442830024, 55525884185, 101137051948, 183972829656
OFFSET
1,2
REFERENCES
S. S. Manna and A. J. Guttmann, Kinetic growth walks..., J. Phys. A 22 (1989), 3113-3122. See Table 1.
CROSSREFS
Sequence in context: A249406 A220020 A201149 * A014480 A048778 A048611
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Aug 02 2015
STATUS
approved