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A143229 a(n) = A000041(n) * A000070(n). 1
1, 2, 8, 21, 60, 133, 330, 675, 1474, 2910, 5838, 10920, 20944, 37673 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

FORMULA

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.

EXAMPLE

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).

CROSSREFS

Cf. A143228, A000041, A000070.

Sequence in context: A014409 A109782 A123044 * A123285 A143212 A107361

Adjacent sequences:  A143226 A143227 A143228 * A143230 A143231 A143232

KEYWORD

nonn

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Jul 31 2008

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Last modified February 17 23:08 EST 2012. Contains 206085 sequences.