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A121790
"Hamiltonian cow patches" on the square lattice (see Jensen web site for further information).
2
0, 6, 81, 2420, 158487, 22668546, 7067228903, 4796951277784, 7083189530689311, 22740544515287098346, 158673902903632923216807, 2405521769596577026409223804, 79215226453280152797069512845071
OFFSET
1,2
LINKS
I. Jensen, Table of n, a(n) for n = 1..18 [from the Jensen link below]
CROSSREFS
Sequence in context: A371765 A204264 A076282 * A279203 A320993 A032491
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Aug 30 2006
STATUS
approved