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A222175
Numbers n such that 7n is a partition number.
11
1, 6, 8, 11, 33, 55, 70, 225, 348, 430, 1449, 3091, 4455, 5334, 6369, 17822, 21039, 40227, 47133, 55165, 64468, 160215, 441105, 1159752, 1327013, 2929465, 3334067, 7142275, 16873472, 19032990, 38749850, 86737678, 97129029, 189672868, 405991500, 451875336, 852077072, 1756048833, 2152268305, 3558408287, 4341238854, 7098041203
OFFSET
1,2
FORMULA
a(j) = A225327(j)/7.
EXAMPLE
6 is in the sequence because 7*6 = 42 and 42 is a partition number: p(10) = A000041(10) = 42.
MATHEMATICA
Select[PartitionsP[Range[300]], Mod[#, 7] == 0 &]/7 (* T. D. Noe, May 05 2013 *)
KEYWORD
nonn
AUTHOR
Omar E. Pol, May 05 2013
EXTENSIONS
a(9)-a(42) from R. J. Mathar, May 05 2013
STATUS
approved