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A097907
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Decimal expansion of Sum_{i >= 1} t(i)/g(i), where t(i) = triangular number(i) and g(i) = (sum of first i primes)^2.
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0
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5, 3, 6, 9, 9, 3, 9, 1, 7, 4, 3, 0
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OFFSET
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0,1
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LINKS
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FORMULA
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EXAMPLE
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0.53699391743...
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MATHEMATICA
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Module[{nn=10^6}, RealDigits[Total[Accumulate[Range[nn]]/Accumulate[Prime[Range[nn]]]^2], 10, 30][[1]]] (* Gives the first 7 terms correctly. To generate more, increase the value of nn. *) (* Harvey P. Dale, May 27 2023 *)
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CROSSREFS
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KEYWORD
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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