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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A258224 Row sums of A258223. 3
1, 2, 13, 166, 3450, 105053, 4385297, 239389538, 16497800177, 1396841773631, 142194450687440, 17100401655609460, 2394468068218870494, 385647096554809325098, 70702689662684594772871, 14623755150209185924416598, 3385915623744083331349813602 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..250

FORMULA

a(n) = Sum_{k=0..n} A258223(n,k).

MAPLE

b:= proc(x, y, t, k) option remember; `if`(y>x or y<0, 0,

      `if`(x=0, 1, b(x-1, y-1, false, k)*`if`(t, (k*x+y)/y, 1)

                 + b(x-1, y+1, true, k)  ))

    end:

A:= (n, k)-> b(2*n, 0, false, k):

T:= proc(n, k) option remember;

       add(A(n, i)*(-1)^(k-i)*binomial(k, i), i=0..k)/k!

    end:

a:= proc(n) option remember; add(T(n, k), k=0..n) end:

seq(a(n), n=0..20);

CROSSREFS

Cf. A258221, A258223.

Sequence in context: A090643 A132521 A177448 * A078363 A143851 A088316

Adjacent sequences:  A258221 A258222 A258223 * A258225 A258226 A258227

KEYWORD

nonn

AUTHOR

Alois P. Heinz, May 23 2015

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 September 22 08:23 EDT 2018. Contains 315270 sequences. (Running on oeis4.)