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A269430 Decimal expansion of (1 + Pi)/2. 1

%I #21 Oct 01 2022 15:34:34

%S 2,0,7,0,7,9,6,3,2,6,7,9,4,8,9,6,6,1,9,2,3,1,3,2,1,6,9,1,6,3,9,7,5,1,

%T 4,4,2,0,9,8,5,8,4,6,9,9,6,8,7,5,5,2,9,1,0,4,8,7,4,7,2,2,9,6,1,5,3,9,

%U 0,8,2,0,3,1,4,3,1,0,4,4,9,9,3,1,4,0,1,7,4,1,2,6,7,1,0,5,8,5,3,3,9

%N Decimal expansion of (1 + Pi)/2.

%H <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>

%F Equals A096444 + 1 or A019669 + 1/2.

%F Equals Sum_{k>=0} 2^k/binomial(2*k+2,k). - _Amiram Eldar_, Jun 30 2020

%e 2.0707963267948966192313216916397514420985846996875529...

%o (Sage) N((1+pi)/2, digits=110)

%o (PARI) (1 + Pi)/2 \\ _Altug Alkan_, Apr 07 2016

%Y Cf. A000796, A002193, A002194, A002163, A174968, A001622, A002161, A010767, A011002, A011003, A191502, A053004.

%K cons,nonn

%O 1,1

%A _Jani Melik_, Feb 26 2016

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Last modified April 17 21:22 EDT 2024. Contains 371767 sequences. (Running on oeis4.)