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

 

Logo

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A027498 First diagonal of A027495. 0
1, 1, 2, 2, 3, 156, 11310, 330629, 152089340, 643246654596, 35524062269891, 337477881082719102180, 109384291330500150829872420, 86955035326335082936056844350 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..14.

FORMULA

Numerators of sequence a[ n, n ] in (a[ i, j ])^2 where a[ i, j ] = S(i, j)/BellNumber(i) if j<=i, 0 if j>i

CROSSREFS

Sequence in context: A184847 A246718 A177764 * A094877 A006560 A088251

Adjacent sequences:  A027495 A027496 A027497 * A027499 A027500 A027501

KEYWORD

nonn

AUTHOR

Olivier Gérard

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 January 16 15:31 EST 2019. Contains 319195 sequences. (Running on oeis4.)