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A195675 Round(Pi^(n+1)/(Pi^2 + 1)). 0
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

a(n+1)/a(n) converges to Pi.

LINKS

Table of n, a(n) for n=0..28.

FORMULA

a(n) = round(Pi^(n+1)/(Pi^2 + 1)).

EXAMPLE

a(4) = 28 because (Pi^5)/(Pi^2 + 1) = 28.1537095089....

MATHEMATICA

Table[Round[Pi^(n + 1)/(Pi^2 + 1)], {n, 0, 28}]

PROG

(PARI) for(n=0, 28, print1(round(Pi^(n+1)/(Pi^2+1)), ", "))

CROSSREFS

Another version of A090426.

Cf. A000796, A170953.

Sequence in context: A095716 A124820 A022020 * A170953 A199104 A049220

Adjacent sequences:  A195672 A195673 A195674 * A195676 A195677 A195678

KEYWORD

nonn

AUTHOR

Arkadiusz Wesolowski, Apr 22 2012

STATUS

approved

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Last modified September 19 11:06 EDT 2019. Contains 327192 sequences. (Running on oeis4.)