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A334325
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Number of irreducible, unrooted, unoriented self-avoiding chains of length n for the square lattice.
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3
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2, 2, 4, 8, 20, 42, 100, 228, 540, 1278, 3088, 7436, 18176, 44436, 109536, 270726, 672400, 1674764, 4185888, 10488914, 26352252, 66354472, 167429028, 423270120, 1071908028, 2718939372, 6906918040, 17569856618, 44751600732, 114121225984, 291346481204, 744569863528
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OFFSET
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1,1
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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