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A127738 A004736 * A127701. 0
1, 3, 2, 5, 5, 3, 7, 8, 7, 4, 9, 11, 11, 9, 5, 11, 14, 15, 14, 11, 6, 13, 17, 19, 19, 17, 13, 7, 15, 20, 23, 24, 23, 20, 15, 8, 17, 23, 27, 29, 29, 27, 23, 17, 9, 19, 26, 31, 34, 35, 34, 31, 26, 19, 10 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Left column = A028387: (1, 5, 11, 19, 29, 41, 55,...) Row sums = A008778: (1, 5, 13, 26, 45, 71,...)

LINKS

Table of n, a(n) for n=1..55.

FORMULA

A004736 * A127701 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

3, 2;

5, 5, 3;

7, 8, 7, 4;

9, 11, 11, 9, 5;

11, 14, 15, 14, 11, 6;

13, 17, 19, 19, 17, 13, 7;

...

CROSSREFS

Cf. A004736, A127701, A008778, A028387.

Sequence in context: A094787 A132778 A182289 * A001598 A141297 A303917

Adjacent sequences:  A127735 A127736 A127737 * A127739 A127740 A127741

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Jan 27 2007

STATUS

approved

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Last modified April 20 08:50 EDT 2019. Contains 322306 sequences. (Running on oeis4.)