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A195675
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Round(Pi^(n+1)/(Pi^2 + 1)).
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0
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0, 1, 3, 9, 28, 88, 278, 873, 2742, 8616, 27067, 85032, 267137, 839237, 2636540, 8282934, 26021606, 81749286, 256822958, 806833117, 2534740992, 7963123679, 25016890851, 78592880513, 246906816043, 775680639401, 2436872598275, 7655661052475, 24050968520829
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OFFSET
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0,3
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COMMENTS
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a(n+1)/a(n) converges to Pi.
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LINKS
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FORMULA
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a(n) = round(Pi^(n+1)/(Pi^2 + 1)).
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EXAMPLE
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a(4) = 28 because (Pi^5)/(Pi^2 + 1) = 28.1537095089....
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MATHEMATICA
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Table[Round[Pi^(n + 1)/(Pi^2 + 1)], {n, 0, 28}]
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PROG
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(PARI) for(n=0, 28, print1(round(Pi^(n+1)/(Pi^2+1)), ", "))
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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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