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A083082
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First subdiagonal of number array A083075.
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6
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1, 5, 61, 1065, 23801, 650893, 21120373, 794552657, 34040573425, 1637411510421, 87420145670573, 5131440522974329, 328542298690792681, 22789709877615373085, 1702810951672313083621, 136361486383932674632353
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OFFSET
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0,2
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LINKS
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FORMULA
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a(n) = ((n+1)*(2n+5)^n + 1)/(n+2).
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MATHEMATICA
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Table[((n+1)(2n+5)^n+1)/(n+2), {n, 0, 20}] (* Harvey P. Dale, Oct 06 2019 *)
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PROG
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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STATUS
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approved
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