|
|
A027331
|
|
a(n) = Sum_{k=0..m} T(n,k) * T(n,k+2), where m=2 for n=2 and m=n+1 for n >= 3; and T is given by A026148.
|
|
0
|
|
|
5, 36, 293, 2374, 19398, 159072, 1310669, 10844525, 90088935, 751173656, 6284938344, 52752138077, 444072874534, 3748425872686, 31720368301774, 269056938823323, 2287158222456938, 19481849054942368, 166260043774604820, 1421400361753347588, 12172156656845655429
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
2,1
|
|
LINKS
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|