login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

Numbers n such that 7n is a partition number.
11

%I #13 May 10 2013 16:20:28

%S 1,6,8,11,33,55,70,225,348,430,1449,3091,4455,5334,6369,17822,21039,

%T 40227,47133,55165,64468,160215,441105,1159752,1327013,2929465,

%U 3334067,7142275,16873472,19032990,38749850,86737678,97129029,189672868,405991500,451875336,852077072,1756048833,2152268305,3558408287,4341238854,7098041203

%N Numbers n such that 7n is a partition number.

%F a(j) = A225327(j)/7.

%e 6 is in the sequence because 7*6 = 42 and 42 is a partition number: p(10) = A000041(10) = 42.

%t Select[PartitionsP[Range[300]], Mod[#, 7] == 0 &]/7 (* _T. D. Noe_, May 05 2013 *)

%Y Cf. A000041, A213179, A213365, A216258, A217725, A217726, A222178, A222179, A225317, A225323, A225327.

%K nonn

%O 1,2

%A _Omar E. Pol_, May 05 2013

%E a(9)-a(42) from _R. J. Mathar_, May 05 2013