The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A327870 Row sums of A327869. 3

%I

%S 1,2,2,11,14,47,305,611,2070,8831,84077,204371,944333,3850407,

%T 23991739,297448526,927586630,4775902567,24534836837,141681919871,

%U 1080484165089,18553632475991,66762080435239,415657332495526,2298883231736949,15799818116227747

%N Row sums of A327869.

%H Alois P. Heinz, <a href="/A327870/b327870.txt">Table of n, a(n) for n = 0..500</a>

%p b:= proc(n, i, k) option remember; `if`(i*(i+1)/2<n, 0,

%p `if`(n=0, 1, `if`(i<2, 0, b(n, i-1, `if`(i=k, 0, k)))+

%p `if`(i=k, 0, b(n-i, min(n-i, i-1), k)*binomial(n, i))))

%p end:

%p a:= n-> b(n\$2, 0)*(n+1) -add(b(n\$2, k), k=1..n):

%p seq(a(n), n=0..28);

%Y Row sums of A327869.

%Y Cf. A320566.

%K nonn

%O 0,2

%A _Alois P. Heinz_, Sep 28 2019

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 May 6 16:30 EDT 2021. Contains 343586 sequences. (Running on oeis4.)