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A026524
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a(n) = T(n,n-4), T given by A026519. Also a(n) = number of integer strings s(0),...,s(n), counted by T, such that s(n)=4.
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0
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1, 3, 9, 28, 65, 201, 430, 1316, 2721, 8259, 16793, 50680, 102102, 306958, 615024, 1844304, 3682545, 11024331, 21963161, 65675764, 130648089, 390374193, 775797750, 2316881892, 4601346295, 13737041045, 27270124455
(list; graph; refs; listen; history; internal format)
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