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

 

Logo

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A086460 Square array read by antidiagonals: T(n,k)=nk+0^n. 2
1, 1, 0, 1, 1, 0, 1, 2, 2, 0, 1, 3, 4, 3, 0, 1, 4, 6, 6, 4, 0, 1, 5, 8, 9, 8, 5, 0, 1, 6, 10, 12, 12, 10, 6, 0, 1, 7, 12, 15, 16, 15, 12, 7, 0, 1, 8, 14, 18, 20, 20, 18, 14, 8, 0, 1, 9, 16, 21, 24, 25, 24, 21, 16, 9, 0, 1, 10, 18, 24, 28, 30, 30, 28, 24, 18, 10, 0, 1, 11, 20, 27, 32, 35, 36 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,8

COMMENTS

Rows include A028310, A004277, A008486, A008574, A008706, A008458. Main diagonal is n^2+0^n (A000290, preceded by extra 1). Inverse binomial transform of array A049513.

LINKS

Table of n, a(n) for n=0..84.

FORMULA

T(n, k)=nk+0^n

EXAMPLE

Rows begin

1 0 0 0 0 ...

1 1 2 3 4 ...

1 2 4 6 8 ...

1 3 6 9 12 ...

1 4 8 12 16 ...

CROSSREFS

Sequence in context: A220074 A059259 A124394 * A136431 A182888 A144064

Adjacent sequences:  A086457 A086458 A086459 * A086461 A086462 A086463

KEYWORD

easy,nonn,tabl

AUTHOR

Paul Barry, Jul 21 2003

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 December 4 11:13 EST 2016. Contains 278750 sequences.