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A079671
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Number of irreducible polynomials (over the rationals) of form a*x^2+b*x+c 1<=a<=n, 1<=b<=n, 1<=c<=n.
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0
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1, 7, 24, 56, 112, 196, 313, 469, 672, 926, 1239, 1611, 2057, 2577, 3179, 3863, 4647, 5523, 6512, 7606, 8819, 10155, 11624, 13214, 14955, 16841, 18880, 21076, 23448, 25966, 28683
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OFFSET
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1,2
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LINKS
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PROG
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(PARI) a(n)=sum(a=1, n, sum(b=1, n, sum(c=1, n, polisirreducible(a*x^2+b*x+c))))
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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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