This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A003984 Table of max(x,y), where (x,y) = (0,0),(0,1),(1,0),(0,2),(1,1),(2,0),... 2
 0, 1, 1, 2, 1, 2, 3, 2, 2, 3, 4, 3, 2, 3, 4, 5, 4, 3, 3, 4, 5, 6, 5, 4, 3, 4, 5, 6, 7, 6, 5, 4, 4, 5, 6, 7, 8, 7, 6, 5, 4, 5, 6, 7, 8, 9, 8, 7, 6, 5, 5, 6, 7, 8, 9, 10, 9, 8, 7, 6, 5, 6, 7, 8, 9, 10, 11, 10, 9, 8, 7, 6, 6, 7, 8, 9, 10, 11, 12, 11, 10, 9, 8, 7, 6, 7, 8, 9, 10, 11, 12, 13, 12, 11, 10, 9, 8, 7, 7, 8 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 LINKS FORMULA G.f. (x+y-3xy+x^2 y^2)/((1-x)^2 (1-y)^2 (1-xy)). T(n,m) = n + m - min(n,m); a(n) = A003056(n) - A004197(n). - Franklin T. Adams-Watters, Feb 06 2006 a(n) = (1/2)*(floor(sqrt(2*n+1)-1/2)+|floor(sqrt(2*n+1)+1/2)^2-1-2*n|). - Ridouane Oudra, May 03 2019 EXAMPLE Top left corner of array: 0 1 2 3 1 1 2 3 2 2 2 3 3 3 3 3 CROSSREFS Cf. A051125, A003056, A004197. Antidiagonal sums are in A001859. Sequence in context: A284566 A079056 A231205 * A087061 A082860 A283845 Adjacent sequences:  A003981 A003982 A003983 * A003985 A003986 A003987 KEYWORD tabl,nonn AUTHOR 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.

Last modified October 14 02:19 EDT 2019. Contains 327994 sequences. (Running on oeis4.)