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A143238 a(n) = A000203(n) * A024916(n). 1
1, 12, 32, 105, 126, 396, 328, 840, 897, 1566, 1188, 3556, 1974, 3960 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..14.

FORMULA

a(n) = A000203(n) * A024916(n) = row sums of triangle A143237.

EXAMPLE

a(4) = 105 = A000203(4) * A024916(4) = 7 * 15.

a(4) = 105 = sum of row 4 terms of triangle A143237: (7, + 21, + 28 + 49).

CROSSREFS

Cf. A000203, A024916, A143237.

Sequence in context: A183682 A194644 A068381 * A102091 A045669 A045660

Adjacent sequences:  A143235 A143236 A143237 * A143239 A143240 A143241

KEYWORD

nonn

AUTHOR

Gary W. Adamson, Aug 01 2008

STATUS

approved

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Last modified June 19 19:50 EDT 2013. Contains 226416 sequences.