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A027331
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a(n) = Sum_{k=0..m} T(n,k) * T(n,k+2), where m=2 for n=2 and m=n+1 for n >= 3; and T is given by A026148.
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0
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5, 36, 293, 2374, 19398, 159072, 1310669, 10844525, 90088935, 751173656, 6284938344, 52752138077, 444072874534, 3748425872686, 31720368301774, 269056938823323, 2287158222456938, 19481849054942368, 166260043774604820, 1421400361753347588, 12172156656845655429
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OFFSET
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2,1
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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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EXTENSIONS
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STATUS
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approved
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