login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A112709 Unsigned row sums of triangle A112707 (partial sums of Catalan numbers multiplied by powers of negative numbers). 2
1, 2, 2, 5, 14, 65, 376, 2613, 20761, 184756, 1816330, 19526217, 227588213, 2855033988, 38311846704, 547128228043, 8279365967056, 132259968568859, 2223048616707842, 39199883209336095, 723269314782624612 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..20.

FORMULA

a(n)=sum(|A112707(n, m)|, m=0..n), n>=0.

CROSSREFS

Cf. A112708 (signed row sums).

Sequence in context: A185966 A032097 A176856 * A291573 A208353 A208001

Adjacent sequences:  A112706 A112707 A112708 * A112710 A112711 A112712

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang, Oct 31 2005

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 19 23:02 EDT 2019. Contains 321343 sequences. (Running on oeis4.)