login
Numbers n such that 4n is a partition number.
11

%I #21 May 07 2013 20:44:34

%S 14,44,198,609,1401,112819,178805,207955,325039,580880,1021992,

%T 1772375,2029566,3033041,3949119,6635915,23167430,29528576,37549534,

%U 47642323,96069084,120875711,135486560,190250539,212844157,297227062,331927519,461087390,572830228

%N Numbers n such that 4n is a partition number.

%F a(j) = A225324(j)/4.

%e 14 is in the sequence because 4*14 = 56 and 56 is a partition number: p(11) = A000041(11) = 56.

%t Select[PartitionsP[Range[300]], Mod[#, 4] == 0 &]/4 (* _T. D. Noe_, May 05 2013 *)

%Y Cf. A000041, A213179, A213365, A217725, A217726, A222175, A222178, A222179, A225317, A225323, A225324.

%K nonn

%O 1,1

%A _Omar E. Pol_, May 05 2013

%E a(9)-a(29) from _R. J. Mathar_, May 05 2013