0,2
a(n) = A000041(n) * A000070(n), where A000041 = the number of partitions of n and A000070 = partial sums of A000041. Equals row sums of triangle A143228.
a(4) = 60 = A000041(4) * A000070(4) = 5 *12.
a(4) = 60 = sum of row 4 terms of row 4 in triangle A143228: (5 + 5 + 10 + 15 + 25).
Cf. A143228, A000041, A000070.
Sequence in context: A014409 A109782 A123044 * A123285 A143212 A107361
Adjacent sequences: A143226 A143227 A143228 * A143230 A143231 A143232
nonn
Gary W. Adamson (qntmpkt(AT)yahoo.com), Jul 31 2008