login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A171326 Number of 0..20 integer arrays v[1..n] of length n with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..n-1 0
21, 440, 9178, 188356, 3959768, 83153605, 1738979798, 36412811648, 761311432412 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

column 21 of A171307.

LINKS

Table of n, a(n) for n=1..9.

CROSSREFS

Sequence in context: A215856 A297692 A218840 * A092499 A207776 A207273

Adjacent sequences: A171323 A171324 A171325 * A171327 A171328 A171329

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 06 2009

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 4 09:48 EST 2023. Contains 360046 sequences. (Running on oeis4.)