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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A088160 Sum of antidiagonals of square table that satisfies T(n+1,k+1) = sum(i=0,n, sum(j=0,k, T(n-i,k-j)*T(i,j) )) such that the top row and diagonal are equal: T(0,k)=T(k,k)=A088159(k). 2
 1, 2, 6, 30, 219, 2029, 21951, 266508, 3555679, 51459059, 800597860, 13299687789, 234649789192, 4377700776217, 86042611873972, 1775987427897604, 38389651084747947, 866887176020724213, 20404374490338189930 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Table of n, a(n) for n=0..18. EXAMPLE Table A088158 begins: 1.1..4..25.202.1944.21356... 1.1..2...9..58..470..4492... 1.2..4..14..80..604..5520... 1.3..8..25.124..862..7468... 1.4.14..46.202.1272.10340... 1.5.22..82.342.1944.14664... 1.6.32.138.586.3074.21356... ... CROSSREFS Cf. A088158, A088159. Sequence in context: A333508 A205569 A108204 * A112317 A089459 A027882 Adjacent sequences: A088157 A088158 A088159 * A088161 A088162 A088163 KEYWORD nonn AUTHOR Paul D. Hanna, Sep 20 2003 EXTENSIONS More terms from Ray Chandler, Sep 23 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified July 15 19:27 EDT 2024. Contains 374334 sequences. (Running on oeis4.)