A011792 Number of directed animals on a certain lattice.
1, 3, 18, 121, 896, 7028, 57406, 483080
Offset: 0
Crossrefs
Cf. A295537.
Formula
a(n) = A295537(n+1), at least for 0 <= n <= 7, (the known terms). - Omar E. Pol, Dec 05 2017
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