login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A207322 a(n) = Sum{k=0..n} (-1)^k*A002893(k)). 0
0, -3, 12, -81, 558, -4095, 31074, -241761, 1915998, -15403839, 125264226, -1028198769, 8505440256, -70821126339, 593013903996, -4989710564097, 42162715062462, -357607035133503, 3043168538309586, -25973801534610801, 222282241838388288, -1906876619917171299, 16394307639893817516, -141231930366941378721 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..23.

CROSSREFS

Sequence in context: A303047 A197445 A303033 * A188227 A224608 A023881

Adjacent sequences:  A207319 A207320 A207321 * A207323 A207324 A207325

KEYWORD

sign

AUTHOR

N. J. A. Sloane, Feb 16 2012

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 December 4 09:10 EST 2021. Contains 349484 sequences. (Running on oeis4.)