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A350968 a(n) = (A350967(n)-1)/2. 1

%I #9 Mar 03 2022 12:54:19

%S 4,499,54940,6042955,664670164,73107675139,8041179595180,

%T 884456647794715,97282190077823524,10700156451912792979,

%U 1176919927520329404220,129450491870784321671275,14238377185858755054436084,1566092039952592271666298019,172255886017599291128238346060

%N a(n) = (A350967(n)-1)/2.

%D E.-A. Majol, Note #2228, L'Intermédiaire des Mathématiciens, 9 (1902), pp. 183-185.

%Y Cf. A144930, A350967.

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Mar 03 2022

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Last modified July 26 17:52 EDT 2024. Contains 374636 sequences. (Running on oeis4.)