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Continued fraction expansion of Product_{p prime} (1 - 1/(p*(p^2-1))).
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%I #12 Mar 13 2021 10:05:23

%S 0,1,3,1,2,1,1,2,1,1,1,18,1,1,6,5,59,1,2,159,1,5,1,3,1,1,73,1,4,1,3,

%T 22,1,90,9,4,145,1,32,1,2,3,1,2,1,2,4,1,2,12,1,462,1,3,3,2,2,1,1,1,1,

%U 7,2,4,23,1,6,1,2,1,3,1,3,2,6,1,1,10,2,2,10,5,24,3,1,3,1,181,5,1,1,3,4,3,1

%N Continued fraction expansion of Product_{p prime} (1 - 1/(p*(p^2-1))).

%H G. Niklasch, <a href="/A001692/a001692.html">Some number-theoretical constants: 1000-digit values</a>. [Cached copy]

%o (PARI) contfrac(prodeulerrat(1 - 1/(p*(p^2-1)))) \\ _Amiram Eldar_, Mar 13 2021

%Y Cf. A065470 (decimal expansion).

%K cofr,nonn

%O 0,3

%A _Rick L. Shepherd_, Jul 11 2002