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A115980 Array read by rows distributing the values of A000712 (vertically) and A001519 (horizontally). 0
1, 2, 2, 3, 2, 4, 4, 3, 2, 4, 6, 5, 4, 6, 2, 4, 6, 8, 6, 3, 4, 4, 8, 9, 2, 4, 6, 8, 10, 7, 4, 12, 8, 4, 8, 12, 12, 2, 4, 6, 8, 10, 12, 8, 3, 6, 5, 4, 14, 21, 12, 4, 8, 12, 16, 15, 2, 4, 6, 8, 10, 12, 14, 9 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

A001906 records the partial sums of the column sequence A001519 and is also the row sum of A078812 and of A085643; sequences linking a(n) to compositions of n having k parts when there are q kinds of part q. - Alford Arnold, Apr 30 2006

LINKS

Table of n, a(n) for n=0..63.

EXAMPLE

The array begins:

1

..2

....2

....3

......2

......4..3

......4

.........2

.........4..4..3

.........6..6..4

.........5

with column sums beginning 1 2 5 10 20 ...A000712 related to A000041

and sums over each template beginning 1 2 5 13 34 ...A001519 related to A000045

CROSSREFS

Cf. A000041, A000045.

Cf. A001906, A078812, A085643.

Sequence in context: A051693 A266470 A209700 * A088936 A328405 A049822

Adjacent sequences:  A115977 A115978 A115979 * A115981 A115982 A115983

KEYWORD

easy,nonn,tabf

AUTHOR

Alford Arnold, Feb 11 2006

STATUS

approved

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Last modified November 21 22:40 EST 2019. Contains 329383 sequences. (Running on oeis4.)