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%I #14 Oct 01 2022 13:59:09
%S 7,2,4,6,7,0,3,3,4,2,4,1,1,3,2,1,8,2,3,6,2,0,7,5,8,3,3,2,3,0,1,2,5,9,
%T 4,6,0,9,4,7,4,9,5,0,6,0,3,3,9,9,2,1,8,8,6,7,7,7,9,1,1,4,6,8,5,0,0,3,
%U 7,3,5,2,0,1,6,0,0,4,3,6,9,1,6,8,1,4,4,5,0,3,0,9,8,7,9,3,5,2,6,5
%N Decimal expansion of (Pi^2-9)/12.
%H <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>
%F Equals Sum_{i>=1} 1/(i*(i+1)*(i+2)^2).
%F For n>1, a(n) = A072691(n+1).
%e 0.072467033424113218236207583323...
%t RealDigits[(Pi^2 - 9)/12, 10, 100][[1]] (* _Amiram Eldar_, May 17 2022 *)
%o (PARI) (Pi^2-9)/12 \\ _Charles R Greathouse IV_, Oct 01 2022
%Y Cf. A072691.
%K nonn,easy,cons
%O -1,1
%A _Zak Seidov_, Mar 12 2007
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