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Appears to be an erroneous version of A050795.
2

%I #29 Mar 08 2022 18:44:35

%S 3,9,19,31,33,35,51,73,81,99,105,129,145,147,161,163,179,195,201,233,

%T 243,273,289,291,297,339,361,387,393,451,465,467,483,489

%N Appears to be an erroneous version of A050795.

%H E.-B. Escott, <a href="/A350978/a350978.pdf">Query 2521</a>, L'Intermédiaire des Mathématiciens, 10 (1903), 285.

%K dead

%O 1,1

%A _N. J. A. Sloane_, Mar 06 2022

%E Thanks to _Chai Wah Wu_ for pointing out that something was wrong, and to _David Applegate_ and _Allan C. Wechsler_ for identifying the correct version of this sequence.