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K. De'Bell and J. W. Essam, Estimates of the site percolation probability exponents for some directed lattices, J. Phys. A 16 (1983), 3145-3147.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Table of n, a(n) for n=2..20.
Index entries for sequences related to b.c.c. lattice
Sequence in context: A166318 A166317 A068346 * A061309 A263655 A059064
Adjacent sequences: A006835 A006836 A006837 * A006839 A006840 A006841
N. J. A. Sloane.