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A141294 Triangle read by rows, A054523 * A000012, 1<=k<=n. 0
1, 2, 1, 3, 1, 1, 4, 2, 1, 1, 5, 1, 1, 1, 1, 6, 4, 2, 1, 1, 1, 7, 1, 1, 1, 1, 1, 1, 8, 4, 2, 2, 1, 1, 1, 1, 9, 3, 3, 1, 1, 1, 1, 1, 1, 10, 6, 2, 2, 2, 1, 1, 1, 1, 1, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 12, 8, 6, 4, 2, 2, 1, 1, 1, 1, 1, 1, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 14, 8, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row sums = A018804: (1, 3, 5, 8, 9, 15, 13, 20,...).

LINKS

Table of n, a(n) for n=1..103.

FORMULA

Triangle read by rows, A054523 * A000012, 1<=k<=n. By rows, partial sums starting from the right.

EXAMPLE

First few rows of the triangle =

1;

2, 1;

3, 1, 1;

4, 2, 1, 1;

5, 1, 1, 1, 1;

6, 4, 2, 1, 1, 1;

7, 1, 1, 1, 1, 1, 1;

8, 4, 2, 2, 1, 1, 1, 1;

...

CROSSREFS

Cf. A054523, A018804.

Sequence in context: A143349 A182715 A088425 * A174557 A010766 A135841

Adjacent sequences:  A141291 A141292 A141293 * A141295 A141296 A141297

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Aug 02 2008

STATUS

approved

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Last modified August 17 17:05 EDT 2018. Contains 313816 sequences. (Running on oeis4.)