A269938 Row sums of A268434.

1, 1, 3, 21, 269, 5501, 164871, 6826353, 373877161, 26202082729, 2288805048251, 243958190401341, 31176599353144853, 4706999020319020101, 829102910675624591839, 168548158717259440652601, 39174415082612704149839761, 10324151597447856368055425553, 3062691062053211798175516784691

Offset

0,3

Links

Table of n, a(n) for n=0..18.

Maple

A269938 := proc(n) local T; T := proc(n, k) option remember;
if n=k then 1 elif k<0 or k>n then 0 else T(n-1, k-1)+((n-1)^2+k^2)*T(n-1, k) fi end: add(T(n, k), k=0..n) end: seq(A269938(n), n=0..18);

Crossrefs

Cf. A268434.

Sequence in context: A322224 A221094 A098278 * A277454 A215127 A227820

Adjacent sequences: A269935 A269936 A269937 * A269939 A269940 A269941

Keyword

nonn

Author

Peter Luschny, Mar 08 2016

Status

approved