|
|
A323613
|
|
Antidiagonal sums of A323182.
|
|
2
|
|
|
1, 1, 2, 8, 27, 105, 492, 2584, 14893, 93625, 637342, 4663856, 36455959, 302825585, 2661650680, 24662914640, 240141823417, 2450053360913, 26125165902810, 290487741343352, 3361177509359859, 40396577112990745, 503447944487902244, 6496090993661295784, 86660903426459105701
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,3
|
|
LINKS
|
|
|
EXAMPLE
|
a(1) = 0 + 1 = 1.
a(2) = -1 + 2 + 1 = 2.
a(3) = 0 + 3 + 4 + 1 = 8.
|
|
MATHEMATICA
|
Table[Sum[ChebyshevU[k, n - k], {k, 0, n}], {n, 0, 30}] (* Vaclav Kotesovec, Jan 20 2019 *)
|
|
PROG
|
(PARI) {a(n) = sum(k=0, n, polchebyshev(k, 2, n-k))}
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|