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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A032081 Shifts left under "BHJ" (reversible, identity, labeled) transform. 0
1, 1, 1, 4, 20, 220, 2020, 26310, 332410, 5189380, 83623310, 1551800020, 30389755640, 659473386920, 15190156196820, 379169061066320, 10036224774532890, 283940562045261940, 8488369128461080030 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..19.

CROSSREFS

Sequence in context: A215873 A066917 A280078 * A034235 A222655 A000847

Adjacent sequences:  A032078 A032079 A032080 * A032082 A032083 A032084

KEYWORD

nonn,eigen

AUTHOR

Christian G. Bower

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified February 21 10:51 EST 2018. Contains 299390 sequences. (Running on oeis4.)