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A143313 Triangle read by rows, A130540 * A000012, 1<=k<=n. +0
2
1, 4, 1, 5, 1, 1, 11, 4, 1, 1, 7, 1, 1, 1, 1, 20, 8, 4, 1, 1, 19, 1, 1, 1, 1, 1, 1, 26, 11, 4, 4, 1, 1, 1, 1, 18, 5, 5, 1, 1, 1, 1, 1, 1, 28, 10, 4, 4, 4, 1, 1, 1, 1, 1, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 55, 27, 15, 8, 4, 4, 1, 1, 1, 1, 1, 1, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 (list; table; graph; listen)
OFFSET

1,2

COMMENT

Left border = A007429: (1, 4, 5, 11, 7, 20, 9,...).

Row sums = A060640: (1, 5, 7, 17, 11, 35,...).

FORMULA

Triangle read by rows, A130540 * A000012, 1<=k<=n. Equals partial row sums of A130540 starting from the right.

EXAMPLE

First few rows of the triangle =

1;

4, 1;

5, 1, 1;

11, 4, 1, 1;

7, 1, 1, 1, 1;

20, 8, 4, 1, 1, 1;

9, 1, 1, 1, 1, 1, 1;

...

Row 4 = (11, 4, 1, 1) since row 4 of A130540 = (7, 3, 0, 1).

CROSSREFS

Cf. A130540, A007429, A060640.

Sequence in context: A079188 A076810 A061642 this_sequence A132588 A046785 A060044

Adjacent sequences: A143310 A143311 A143312 this_sequence A143314 A143315 A143316

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Aug 06 2008

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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